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Microlite Group

A group of related mineral species

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Photos of Microlite Group (445)Recorded Ages and Analyses Discuss Microlite Group

Microlite Group Gallery Search Photos of Microlite Group

Edit Microlite Group Add Synonym Edit CIF structures Clear Cache

Uranmicrolite (of Hogarth 1977)

Parelhas, Rio Grande do Norte, Brazil

Microlite Group

Ipê mine, Golconda mining district, Governador Valadares, Minas Gerais, Brazil

Microlite Group, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA

Uranmicrolite (of Hogarth 1977)

Parelhas, Rio Grande do Norte, Brazil

Microlite Group

Ipê mine, Golconda mining district, Governador Valadares, Minas Gerais, Brazil

Microlite Group, etc.

Hewitt Gem Quarry, Haddam, Middlesex County, Connecticut, USA

Uranmicrolite (of Hogarth 1977)

Parelhas, Rio Grande do Norte, Brazil

Microlite Group

Ipê mine, Golconda mining district, Governador Valadares, Minas Gerais, Brazil

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About Microlite GroupHide

Formula:

A_2-mTa₂X_6-wZ_1-n

The A site, therefore, may host Na, Ca, Sr, Pb2+, Sn2+, Sb3+, Y, U, □, or H2O or, less frequently Ag, Mn, Ba, Fe2+, Bi3+, Ce (and other REE), Sc or Th.

X typically is O but can include subordinate OH and F.

Z typically is an anion, but can also be a vacancy, H2O, or a very large (>> 1.0 Å) monovalent cation (site 8b). Examples are OH–, F, O, □, H2O, K, Cs, Rb.

The symbols m, w, and n represent parameters that indicate incomplete occupancy of the A, X and Z sites, respectively. (Atencio et al. 2010).

Colour:

Pale yellow to reddish brown, sometimes emerald-green

Lustre:

Vitreous, Resinous

Hardness:

5 - 5½

Specific Gravity:

5.9 - 6.4

Crystal System:

Isometric

Member of:

Pyrochlore Supergroup

Name:

The microlite group has its name after the generic name microlite which was first introduced in 1835 by C.U. Shepard. From the Greek μικρός, small, in allusion to the usually small size of the crystals from the first recorded locality.

First Recorded Locality:

ⓘ Clark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA

Ta-dominant members of the Pyrochlore Supergroup.

The nomenclature was recently revised by Atencio et al. (2010); see also Christy & Atencio (2013).

Visit gemdat.org for gemological information about Microlite Group.

Unique IdentifiersHide

Mindat ID:

2705

Long-form identifier:

mindat:1:1:2705:8

IMA Classification of Microlite GroupHide

IMA status notes:

IMA Approved Group Name, Renamed by the IMA

Approval history:

Renamed by IMA: 2010

Classification of Microlite GroupHide

Strunz-mindat (2026):

4.00.

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
0 :
0 :

Dana 8th ed.:

8.2.2.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
2 : A₂B₂O₆(O,OH,F)

Hey's CIM Ref.:

18.1.11

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference for Standard
Mic	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Mie	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Microlite GroupHide

Lustre:

Vitreous, Resinous

Transparency:

Transparent

Colour:

Pale yellow to reddish brown, sometimes emerald-green

Streak:

Light yellow, brownish

Hardness:

5 - 5½ on Mohs scale

Tenacity:

Brittle

Cleavage:

Imperfect/Fair
Octahedral{111} (may be a parting), sometimes distinct, but usually not distinguishable.

Fracture:

Irregular/Uneven, Splintery, Sub-Conchoidal

Density:

5.9 - 6.4 g/cm³ (Measured) 6.33 g/cm³ (Calculated)

Comment:

Calc for Ca:Na = 1:1

Optical Data of Microlite GroupHide

Type:

Isotropic

Chemistry of Microlite GroupHide

Mindat Formula:

A_2-mTa₂X_6-wZ_1-n

The A site, therefore, may host Na, Ca, Sr, Pb2+, Sn2+, Sb3+, Y, U, □, or H2O or, less frequently Ag, Mn, Ba, Fe2+, Bi3+, Ce (and other REE), Sc or Th.

X typically is O but can include subordinate OH and F.

Z typically is an anion, but can also be a vacancy, H2O, or a very large (>> 1.0 Å) monovalent cation (site 8b). Examples are OH–, F, O, □, H2O, K, Cs, Rb.

The symbols m, w, and n represent parameters that indicate incomplete occupancy of the A, X and Z sites, respectively. (Atencio et al. 2010).

Chemical AnalysisHide

Oxide wt%:

	1	2	3	4
CaO	4.2 %	14,07 %	14,24 %	4,95 %
MnO	0.3 %
FeO	1.5 %
Sc₂O₃	3.4 %
Y₂O₃	3.6 %
SnO₂	1.5 %
UO₂	9.5 %	16,74 %	15,51 %	15,56 %
Ta₂O₅	56.0 %	41,48 %	41,66 %	39,75 %
Nb₂O₅	15.2 %	18,60 %	18,09 %	18,23 %
TiO₂	2.0 %	5,51 %	4,98 %	5,23 %
F	1.5 %
Na₂O		0,61 %	0,59 %
ThO₂			0,19 %	0,04 %
Fe₂O₃		0,95 %	0,81 %	0,78 %
H₂O		2,04 %	3,41 %	15,47 %
Total:	98.7 %	96 %	95 %	96 %

Empirical formulas:

Sample ID	Empirical Formula
5	(Ca1.07Na0.81◻0.12)Σ2.00(Ta1.84Nb0.14Sn0.02)Σ2.00[O5.93(OH)0.07]Σ6.00[F0.79(OH)0.21]Σ1.00
6	(Pb_1.30◻_0.30Ca_0.29Na_0.08U_0.03)_Σ2.00(Ta_0.82Nb_0.62Si_0.23Sn⁴⁺_0.15Ti_0.07Fe³⁺_0.10Al_0.01)_Σ2.00O₆[◻_0.52(OH)_0.25O_0.23]_Σ1.00
7	(Pb_1.33◻_0.66Mn_0.01)_Σ2.00(Ta_0.87Nb_0.72Sn⁴⁺_0.18Fe³⁺_0.11W_0.08Ti_0.04)_Σ2.00O₆[◻_0.80(OH)_0.10O_0.10]_Σ1.00
8	(Ca1.48Na0.06Mn0.01)Σ1.55(Ta1.88Nb0.11Sn0.01)Σ2.00O6.00[(OH)0.76F0.20O0.04]
2	[Ca1.23U0.30(H2O)0.21Na0.10]?1.84(Ta0.92Nb0.68Ti0.34Fe0.06)?2O6.00[(OH)0.69O0.31]?1.00 on the basis of Nb+Ti+Ta+Fe=2

Sample references:

ID	Type	Locality	Reference	Notes
1	Sample 1	Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway	Bergstøl, S., Juve, Gunnar (1988) Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway. A contribution to the mineralogy and geochemistry of scandium and tin. Mineralogy and Petrology, 38 (4) 229-243 doi:10.1007/bf01167090	Altered areas in ixiolite. Electron Microprobe analysis
2		Atagoyama, Koriyama City, Fukushima Prefecture, Japan	Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1
3		" "	Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1
4		" "	Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1
5	Type Specimen	Volta Grande mine, Nazareno, Minas Gerais, Brazil	Andrade, M. B., Atencio, D., Persiano, A. I. C., Ellena, J. (2013) Fluorcalciomicrolite, (Ca,Na,☐)₂Ta₂O₆F, a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. Mineralogical Magazine, 77 (7) 2989-2996 doi:10.1180/minmag.2013.077.7.08
6	Type Specimen	Ploskaya Mountain, Western Keivy Massif, Keivy Mountains, Lovozersky District, Murmansk Oblast, Russia	Atencio, Daniel, Andrade, Marcelo B., Bindi, Luca, Bonazzi, Paola, Zoppi, Matteo, Stanley, Chris J., Kristiansen, Roy (2018) Kenoplumbomicrolite, (Pb,□)₂Ta₂O₆[□,(OH),O], a new mineral from Ploskaya, Kola Peninsula, Russia. Mineralogical Magazine, 82 (5) 1049-1055 doi:10.1180/minmag.2017.081.082
7	Type Specimen	" "	Atencio, Daniel, Andrade, Marcelo B., Bindi, Luca, Bonazzi, Paola, Zoppi, Matteo, Stanley, Chris J., Kristiansen, Roy (2018) Kenoplumbomicrolite, (Pb,□)₂Ta₂O₆[□,(OH),O], a new mineral from Ploskaya, Kola Peninsula, Russia. Mineralogical Magazine, 82 (5) 1049-1055 doi:10.1180/minmag.2017.081.082
8	Type Specimen	Volta Grande mine, Nazareno, Minas Gerais, Brazil	Andrade, M. B., Yang, H., Atencio, D., Downs, R. T., Chukanov, N. V., Lemée-Cailleau, M. H., Persiano, A. I. C., Goeta, A. E., Ellena, J. (2017) Hydroxycalciomicrolite, Ca_1.5Ta₂O₆(OH), a new member of the microlite group from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. Mineralogical Magazine, 81 (3) 555-564 doi:10.1180/minmag.2016.080.116

Crystallography of Microlite GroupHide

Crystal System:

Isometric

Class (H-M):

m3m(4/m32/m) - Hexoctahedral

Space Group:

Fd3m

Morphology:

Octahedral, often with subordinate {001}, {113} or {001}.

Twinning:

Twin plane {111} (spinel law twins), rare.

Crystallographic forms of Microlite GroupHide

Crystal Atlas:

Image Loading

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Microlite no.1 - {111} - Goldschmidt (1913-1926)

Microlite no.4 - {111} - Goldschmidt (1913-1926)

3d models and HTML5 code kindly provided by www.smorf.nl.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Temp (K)
0019783	Hydrokenomicrolite	Andrade M B, Atencio D, Chukanov N V, Ellena J (2013) Hydrokenomicrolite, ([_],H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil American Mineralogist 98 292-296	2013	Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil	293
0019993	Fluorcalciomicrolite	Andrade M B, Atencio D, Persiano A I C, Ellena J (2013) Fluorcalciomicrolite, (Ca,Na,_)2Ta2O6F, a new microlite-group mineral from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil Mineralogical Magazine 77 2989-2996	2013	Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil	293
0018616	Fluornatromicrolite	Witzke T, Steins M, Doering T, Schuckmann W, Wegner R, Pollmann H (2011) Fluornatromicrolite, (Na,Ca,Bi)2Ta2O6F, a new mineral species from Quixaba, Paraiba, Brazil The Canadian Mineralogist 49 1105-1110	2011	Quixaba, Paraiba, Brazil	293
0018462	Fluornatromicrolite	Andrade M B, Atencio D, Menezes L A D, Ellena J (2011) The crystal structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Redondo mine, Coronel Murta, Minas Gerias, Brazil The Canadian Mineralogist 49 615-621	2011	Morro Redondo mine, Coronel Murta, Minas Gerias, Brazil	293
0014636	Hydroxykenomicrolite	Ercit T S, Cerny P, Hawthorne F C (1993) Cesstibtantite - a geologic introduction to the inverse pyrochlores Mineralogy and Petrology 48 235-255	1993	Leshaia pegmatite, Kola Peninsula, Russia	293
0014637	Hydroxykenomicrolite	Ercit T S, Cerny P, Hawthorne F C (1993) Cesstibtantite - a geologic introduction to the inverse pyrochlores Loclity: Tanco pegmatite, Manitoba, Canada Mineralogy and Petrology 48 235-255	1993		293
0012114	Oxystannomicrolite	Gasperin M (1960) Contribution a l'etude de quelques oxydes doubles que forme le tantale avec l'etain, l'uranium et le calcium. _cod_database_code 1001840 Bulletin de la Societe Francaise de Mineralogie et de Cristallographie 83 1-21	1960		293
0012249	Oxystannomicrolite	Gasperin M (1955) Synthese et identification de deux oxydes doubles de tantale et d'etain Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences 240 2340-2342	1955		293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Hydrokenomicrolite'
loop_
_publ_author_name
'Andrade M B'
'Atencio D'
'Chukanov N V'
'Ellena J'
_journal_name_full 'American Mineralogist'
_journal_volume 98 
_journal_year 2013
_journal_page_first 292
_journal_page_last 296
_publ_section_title
;
 Hydrokenomicrolite, ([_],H2O)2Ta2(O,OH)6(H2O), a new microlite-group mineral
 from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil
;
_database_code_amcsd 0019783
_chemical_compound_source 'Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil'
_chemical_formula_sum 'Ba.66 Sr.54 U.2 Ce.04 La.04 Mn.04 Nd.04 Bi.02 Ca.02 Pb.02 (Ta1.75 Nb.1 Sn.1 Si.04 Ti.01) O8.92 Cs.03 H6.068'
_cell_length_a 10.454
_cell_length_b 10.454
_cell_length_c 10.454
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1142.477
_exptl_crystal_density_diffrn      8.210
_symmetry_space_group_name_H-M 'F d 3 m'
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  '3/4-x,1/4-z,1/2+y'
  '1/4-x,3/4-z,1/2+y'
  '1/4-x,1/4-z,y'
  '3/4+z,3/4+y,-x'
  '3/4+z,1/4+y,1/2-x'
  '1/4+z,3/4+y,1/2-x'
  '1/4+z,1/4+y,-x'
  '3/4-y,3/4-x,z'
  '3/4-y,1/4-x,1/2+z'
  '1/4-y,3/4-x,1/2+z'
  '1/4-y,1/4-x,z'
  '3/4+x,3/4+z,-y'
  '3/4+x,1/4+z,1/2-y'
  '1/4+x,3/4+z,1/2-y'
  '1/4+x,1/4+z,-y'
  '3/4-z,3/4-y,x'
  '3/4-z,1/4-y,1/2+x'
  '1/4-z,3/4-y,1/2+x'
  '1/4-z,1/4-y,x'
  '3/4+y,3/4+x,-z'
  '3/4+y,1/4+x,1/2-z'
  '1/4+y,3/4+x,1/2-z'
  '1/4+y,1/4+x,-z'
  '-z,-x,-y'
  '-z,1/2-x,1/2-y'
  '1/2-z,-x,1/2-y'
  '1/2-z,1/2-x,-y'
  'y,z,x'
  'y,1/2+z,1/2+x'
  '1/2+y,z,1/2+x'
  '1/2+y,1/2+z,x'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
  '1/2-x,-y,1/2-z'
  '1/2-x,1/2-y,-z'
  'z,x,y'
  'z,1/2+x,1/2+y'
  '1/2+z,x,1/2+y'
  '1/2+z,1/2+x,y'
  '-y,-z,-x'
  '-y,1/2-z,1/2-x'
  '1/2-y,-z,1/2-x'
  '1/2-y,1/2-z,-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
BaA   0.50000   0.50000   0.50000   0.33000   0.05560
SrA   0.50000   0.50000   0.50000   0.27000   0.05560
UA   0.50000   0.50000   0.50000   0.10000   0.05560
CeA   0.50000   0.50000   0.50000   0.02000   0.05560
LaA   0.50000   0.50000   0.50000   0.02000   0.05560
MnA   0.50000   0.50000   0.50000   0.02000   0.05560
NdA   0.50000   0.50000   0.50000   0.02000   0.05560
BiA   0.50000   0.50000   0.50000   0.01000   0.05560
CaA   0.50000   0.50000   0.50000   0.01000   0.05560
PbA   0.50000   0.50000   0.50000   0.01000   0.05560
TaB   0.00000   0.00000   0.00000   0.87500   0.03060
NbB   0.00000   0.00000   0.00000   0.05000   0.03060
SnB   0.00000   0.00000   0.00000   0.05000   0.03060
SiB   0.00000   0.00000   0.00000   0.02000   0.03060
TiB   0.00000   0.00000   0.00000   0.00500   0.03060
OX   0.31910   0.12500   0.12500   0.96200   0.03800
O-HX   0.31910   0.12500   0.12500   0.03800   0.03800
WatY   0.37500   0.37500   0.37500   0.32000   0.05100
CsY   0.37500   0.37500   0.37500   0.03000   0.05100
WatY*   0.74700   0.74700   0.74700   0.65000   0.05100

X-Ray Powder DiffractionHide

Loading XRD data...

2θ (degrees) d-spacing (Å)

Data courtesy of RRUFF project at University of Arizona, used with permission.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
34 : Complex granite pegmatites

Geological Setting:

Albitized parts of granite pegmatites.

First Recorded Occurrence of Microlite GroupHide

First Recorded Locality:

ⓘ Clark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA

Empirical Formula of First Recorded Material:

(Ca1.48Na0.06Mn0.01)Σ1.55(Ta1.88Nb0.11Sn0.01)Σ2.00O6.00[(OH)0.76F0.20O0.04]

Synonyms of Microlite GroupHide

Tantalo-niobate (in part)

Other Language Names for Microlite GroupHide

German:Microlit
Mikrolith

Russian:Микролит

Simplified Chinese:细晶石族
细晶石

Spanish:Microlita

Varieties of Microlite GroupHide

Bariomicrolite (of Hogarth 1977)	A discredited mineral. According to the new IMA nomenclature of the Pyrochlore Supergroup the mineral formerly named as bariomicrolite is probably a hydrokenomicrolite. (Atencio et al. 2010). The type sample apparently has □ dominant at the A position ...
Natrobistantite	Natrobistantite studied by Voloshin et al. (1983) and by Beurlen et al. (2005) are both a zero valent dominant member of the microlite group with significant contents (in wt.%) of bismuth and cesium. According to modern microprobe data at least part of N...
Neotantalite	A metamict variety of microlite (Gasperin, 1972).
Scandium Microlite (of Bergstøl & Juve)	A Sc-bearing microlite group mineral. An incompletely described mineral. "Sc exceeds 20 % of the total A atoms and is the most abundant A atom other than Ca" (Bergstøl & Juve 1988). Found in an altered area of an ixiolite.
Stannomicrolite (of Hogarth 1977)	The stannomicrolite species of Ercit et al. (1987) [“sukulaite” of Vorma & Siivola (1967)] is oxystannomicrolite. The stannomicrolite of Uher et al. (2008) is a calciomicrolite or a zero valent dominant member of the microlite group.
Zero valent dominant member of the Microlite Group	Where either vacancy or H₂O are dominant, but it cannot be proven which one.

Relationship of Microlite Group to other SpeciesHide

Member of:

Pyrochlore Supergroup

Other Members of Pyrochlore Supergroup:

Betafite Group	A₂(Ti,Nb)₂O₆Z
Coulsellite Group	A_2-mMg₂F_6-wF_1-n
Elsmoreite Group	W-dominant members of the Pyrochlore Supergroup.
Pyrochlore Group	A₂Nb₂(O,OH)₆Z
Ralstonite Group	Group, where M³⁺ cations are dominant at the B site, and Al is dominant among them, and F^1– is ...
Roméite Group	A₂(Sb⁵⁺)₂O₆Z

Microlite Group Members:

Fluorcalciomicrolite	(Ca,Na)₂(Ta,Nb)₂O₆F	Iso. m3m(4/m32/m) : Fd3m
Fluornatromicrolite	(Na_1.5Bi_0.5)Ta₂O₆F	Iso. m3m(4/m32/m) : Fd3m
Hydrokenomicrolite	(◻,H₂O)₂Ta₂(O,OH)₆(H₂O)	Iso. m3m(4/m32/m)
'Hydromicrolite'	(H₂O,◻)₂Ta₂(O,OH)₆(H₂O)
Hydroxycalciomicrolite	Ca_1.5Ta₂O₆(OH)	Iso. 432 : P4₂32
Hydroxykenomicrolite	(◻,Na,Sb³⁺)₂Ta₂O₆(OH,Cs)	Iso. m3m(4/m32/m) : Fd3m
'Hydroxylstibiomicrolite'	(Sb,Ca,Na)₂(Ta,Nb)₂O₆(OH)	Iso.
'Hydroxynatromicrolite'	(Na,Bi³⁺,◻)₂Ta₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
Kenomicrolite	◻₂Ta₂[O₄(OH)₂]◻	Iso. m3m(4/m32/m) : Fd3m
Kenoplumbomicrolite	(Pb,◻)₂Ta₂O₆(◻,OH,O)	Iso.
Oxybismutomicrolite	(Bi_1.33◻_0.67)_Σ2Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
Oxycalciomicrolite	Ca₂Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
Oxystannomicrolite	Sn₂Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
Oxystibiomicrolite	(Sb³⁺,Ca)₂Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
'Uranmicrolite (of Hogarth 1977)'	(Ca,U,Na)_2-x(Ta,Nb)₂(O,OH)₇	Iso.
'Yttromicrolite (of Hogarth)'	(Ca,Y³⁺,U,Na)_2-x(Ta,Nb,Ti,Fe³⁺)₂O₇	Iso. m3m(4/m32/m) : Fd3m

Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.

Related Minerals - Strunz-mindat Grouping Hide

4.00.	Ferrotaaffeite-6N'3S	(Be,Zn,Mg)FeAl₄O₈	Trig. 3m(32/m) : R3m
4.00.	Mapiquiroite	(Sr,Pb)(U,Y)Fe₂(Ti,Fe³⁺,Cr³⁺)₁₈O₃₈	Trig. 3 : R3
4.00.	'UM2004-19-O:AlCeGdZr'	(Gd,Ce)₄Al₂Zr₄O₁₇
4.00.	Almeidaite	PbZn₂(Mn,Y)(Ti,Fe³⁺)₁₈O₃₇(OH,O)	Trig. 3 : R3
4.00.	Vapnikite	Ca₂CaUO₆	Mon. 2/m
4.00.	'UM2004-21-O:CaFeGdZr'	Ca₂Gd₄Fe₅ZrO₁₅
4.00.	'UM2004-27-O:GdTi'	Gd₂Ti₄O₁₁
4.00.	Písekite-(Y)	(Y,As,Ca,Fe,U)(Nb,Ti,Ta)O₄
4.00.	Pyrochlore Group	A₂Nb₂(O,OH)₆Z
4.00.20	Yttrotungstite-(Nd)	NdW₂O₇(OH) · H₂O	Mon. 2/m : P2₁/m
4.00.25	Heisenbergite	U⁶⁺O₂(OH)₂ · H₂O	Orth.

Other InformationHide

Health Risks:

May be radioactive

Internet Links for Microlite GroupHide

mindat.org URL:

https://www.mindat.org/min-2705.html
Please feel free to link to this page.

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Mineral Dealers:

Buy from D. Joyce minerals

References for Microlite GroupHide

Reference List:

Shepard, C.U. (1835) Microlite, a new mineral species. American Journal of Science: 27: 361.

Shepard (1837) American Journal of Science: 32: 338.

Hayes (1842) American Journal of Science: 43: 33.

Shepard (1842) American Journal of Science: 43: 116.

Hayes (1844) American Journal of Science: 46: 158.

Shepard (1870) American Journal of Science: 50: 93 (as Haddamite).

Nordenskiöld (1872) Geol. För. Förh.: 3: 282.

Nordenskiöld (1894) Geol. För. Förh.: 16: 336.

Machatschki (1932) Chem. Erde: 7: 56.

Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.pp.748-756

Hogarth, D. D. (1977) Classification and nomenclature of the pyrochlore group. American Mineralogist, 62 (5-6) 403-410

Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Ed. (1997) Handbook of Mineralogy Vol. 3 - Halides, Hydroxides, Oxides. Mineral Data Publishing, Tucson, Arizona. p.1-682.pp.372-372

Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673

Brik, Mikhail G., Srivastava, Alok M. (2012) Pyrochlore structural chemistry: predicting the lattice constant by the ionic radii and electronegativities of the constituting ions. Journal of the American Ceramic Society, 95 (4) 1454-1460 doi:10.1111/j.1551-2916.2012.05115.x

Christy, A. G., Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine, 77 (1) 13-20 doi:10.1180/minmag.2013.077.1.02

Localities for Microlite GroupHide

Showing 839 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Hide all sections | Show all sections

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.



Afghanistan
Kunar Dara-e-Pech District ⓘ Dara-e-Pech pegmatite field	[Fluornatromicrolite] Lavinsky (n.d.)
ⓘ Laghman	Muhammad Majid collection
Nuristan Kamdesh District ⓘ Paprok	[Fluornatromicrolite] Lyckberg (2011)
ⓘ Nilaw-Kolum pegmatite field	Poullen et al. (1978)
ⓘ Kolum pegmatites	Peters et al. (2007)

Algeria
Tamanrasset Province (Tamanghasset Province) Tazrouk District Idlès ⓘ Anahef Volcanic Field	Remy (Sahara Central) +5 other references
Tindouf Province ⓘ Draïssa ore field	Semchaoui et al. (2016)

Angola
Huíla Province Quilengues ⓘ Mount Bonga	Amores Casals S et al. (2014)
Namibe Province Moçâmedes Giraúl pegmatite field ⓘ Type IV pegmatites	Gonçalves et al. (2019)

Argentina
Catamarca Province Belén Department Corral Quemado Papachacra ⓘ Papachacra pegmatites	Rocks & Min. (2007)
Córdoba Province Calamuchita Department Río de Los Sauces District ⓘ Angel Mine	[Hydroxykenomicrolite] Demartis et al. (2014)
San Alberto Department Ambul District Cañada del Puerto ⓘ La Calandria mine	[Fluornatromicrolite] Galliski et al. (2016)
San Javier department ⓘ La Juana pegmatite	homepage.mac.com (2009)
ⓘ San Javier pegmatite	Econ Geol (1995)
Jujuy Province Rinconada Department Mina Pirquitas ⓘ Chinchillas Mine	Mercado et al. (2025)
La Rioja Province Sanagasta department ⓘ La Chinchilla granite	[Hydroxycalciomicrolite] Lira et al. (2023)
Neuquén Province Añelo Department Los Chihuidos ⓘ Los Chihuidos SSC deposit	Rainoldi et al. (2024)
ⓘ Salar del Hombre Muerto	C. R. Cortelezzi y R. A. Argañaraz (1981)
Salta Province La Poma Department ⓘ El Quemado mining district	GALLISKI (1983) +1 other reference
ⓘ El Peñón deposit	Galliski et al. (2002) +2 other references
ⓘ El Quemado deposit	[Fluornatromicrolite] Galliski et al. (2006) +1 other reference
ⓘ La Elvirita deposit	[Uranmicrolite (of Hogarth 1977)] Galliski et al. (2001) +2 other references
ⓘ Santa Elena pegmatite	Galliski et al. (2006) +1 other reference
ⓘ Santa Elana C pegmatite	López de Azarevich et al. (2021)
ⓘ Santa Elana I pegmatite	López de Azarevich et al. (2021)
San Luis Province Chacabuco Department Sierra de la Estanzuela ⓘ La Viquita pegmatite	Galliski et al. (1999) +2 other references
ⓘ San Elías mine	minsocam.org (2003) +1 other reference
Coronel Pringles Department Totoral pegmatitic field ⓘ Independencia Argentina pegmatite ?	Galliski et al. (2015)
San Martín Department ⓘ María Elena pegmatite	Galliski et al. (2021)
Sierra de Comechingones Comechingones Pegmatitic field ⓘ Ángel pegmatite	Demartis et al. (2011)
Santa Cruz Province ⓘ Deseado massif	ECHAVARRIA

Asia
ⓘ Emeishan Traps	Bao et al. (2024)

Australia
South Australia Pastoral Unincorporated Area Moolawatana Station (Moolawatana) Mt Babbage area (Inlier) ⓘ Yerila gneissic complex	[Uranmicrolite (of Hogarth 1977)] PA Wulser collection
Tasmania Circular Head municipality Cape Grim district ⓘ Trefoil Island	Sutherland et al. (1967)
West Coast municipality Zeehan mining district Zeehan mineral field Tasmanian Smelting Company site ⓘ South Slag dump	Parbhakar-Fox et al. (2019)
Victoria East Gippsland Shire Glen Valley ⓘ Blue Jacket Tin Mine (Blue Jacket Reef)	[Uranmicrolite (of Hogarth 1977)] Personally collected by Ryan Eagle in ... +2 other references
Western Australia Bridgetown-Greenbushes Shire Greenbushes tinfield ⓘ Greenbushes Mine	Partington (1990) +1 other reference
ⓘ Greenbushes Sn placers	Pryce (1971)
Coolgardie Shire Binneringie Station ⓘ Binneringie Tantalite (Bald Hill pegmatites; Woodline pegmatites)	Jacobson et al. (2007)
ⓘ Dawn View pegmatites	Jacobson et al. (2007)
East Pilbara Shire Marble Bar ⓘ Moolyella pegmatite field	The Simpson Mineral Collection of the ...
Pilgangoora ⓘ Green's Well pegmatite (Green's Tank)	Jacobson et al. (2007)
Pilgangoora Goldfield ⓘ Zakanaka North Mine	David Huston et al. (2001)
ⓘ Pilgangoora pegmatites	Jacobson et al. (2007)
Shaw River District ⓘ Trigg Hill pegmatite group	Jacobson et al. (2007) +2 other references
ⓘ Tabba Tabba pegmatite (Tabba Tabba Tantalum Mine)	Jacobson et al. (2007)
Halls Creek Shire Mount Dockrell Goldfield Mount Dockrell pegmatites ⓘ Columbium Creek	Jacobson et al. (2007)
ⓘ Junda 3	Jacobson et al. (2007)
ⓘ Mount Dockrell	Jacobson et al. (2007)
ⓘ Mount Heartbreak E Mine	Jacobson et al. (2007)
Port Hedland Shire Abydos Station Wodgina ⓘ Beryl Group	Sweetapple et al. (2001)
ⓘ Mount Cassiterite	Sweetapple et al. (2001) +1 other reference
ⓘ Wodgina Tantalite Mine (Wodgina pegmatite; Main tantalite dyke)	[Hydroxycalciomicrolite] Simpson (1928) +1 other reference
Strelley Station ⓘ Strelley pegmatite	Jacobson et al. (2007)
Ravensthorpe Shire ⓘ Ravensthorpe	Jacobson et al. (2007)
ⓘ Mount Cattlin Mine	Jacobson et al. (2007)
Upper Gascoyne Shire Yinnietharra ⓘ Bismuth Hill (The Cairn)	Jacobson et al. (2007)
Cairn Mining Centre ⓘ Williamson's Beryl Mine	Jacobson et al. (2007)
ⓘ Kempton Brothers Beryl Mine	Hesperian Press +2 other references
ⓘ Nardoo Hill (Beryl Hill)	Jacobson et al. (2007) +2 other references
ⓘ New Well pegmatites	Jacobson et al. (2007) +2 other references
ⓘ North Morrissey Hill pegmatite group	Hesperian Press +2 other references
Yalgoo Shire Dalgaranga Station ⓘ Dalgaranga Mine	Jacobson et al. (2007) +2 other references
Meka Station ⓘ Warda Warra pegmatite field	Jacobson et al. (2007) +2 other references
ⓘ Mount Farmer Mine (Niobe prospect)	Calderwood +2 other references
Yilgarn shire Mount Holland pegmatite field ⓘ Forrestania Rubellite pegmatite	[var: Zero valent dominant member of the Microlite Group, Hydroxykenomicrolite] - (Perth 2007) +2 other references

Austria
Carinthia Spittal an der Drau District Spittal an der Drau Lieser ravine ⓘ Lippnik feldspar quarry	[Uranmicrolite (of Hogarth 1977)] Walter (1998)
Wolfsberg ⓘ Feldspar quarry	[Uranmicrolite (of Hogarth 1977)] Niedermayr et al. (1995)
Villach Markogel ⓘ Granite quarry	[Hydroxycalciomicrolite] Niedermayr et al. (1995)
Wolfsberg District Frantschach-Sankt Gertraud Brandrücken ⓘ Spodumene prospect	Niedermayr et al. (1995)
Lavamünd ⓘ Lamprechtsberg mines	Niedermayr et al. (1995)
Lower Austria Waidhofen an der Thaya District Raabs an der Thaya Eibenstein an der Thaya ⓘ Hengl quarry	[Uranmicrolite (of Hogarth 1977)] Kolitsch et al. (2020)
Styria Deutschlandsberg District Deutschlandsberg ⓘ Stoffhütte pegmatite	Ertl et al. (1998)
Murtal District Pusterwald Spodumene pegmatites ⓘ Hohenwart	Mali (2004)
Upper Austria Grieskirchen District Pram ⓘ Pram river	[Uranmicrolite (of Hogarth 1977)] Boehringer (2026)

Bolivia
Santa Cruz Ñuflo de Chavez Province San Agustín ⓘ La Negra mine (Miramonte Mine)	[Uranmicrolite (of Hogarth 1977)] Petrov (n.d.)

Brazil
Amazonas Presidente Figueiredo Pitinga mine ⓘ Madeira pluton	Breiter et al. (2024)
ⓘ Borborema mineral province ?	[Hydrokenomicrolite] Beurlen et al. (2005) +1 other reference
Goiás Trombas ⓘ Trombas pegmatite	Anthony (1997)
Minas Gerais Conceição do Mato Dentro São José de Brejaúba ⓘ Posse mine	[Uranmicrolite (of Hogarth 1977)] Guimar˜aes (1941)
Conselheiro Pena Barra do Cuieté ⓘ Urucum claim	[var: Stannomicrolite (of Hogarth 1977), Fluorcalciomicrolite, Uranmicrolite (of Hogarth 1977)] Atencio et al. (2004)
ⓘ Jonas Mine	Wilson (2012)
Coronel Murta ⓘ Morro Redondo mine	Andrade et al. (2011)
Governador Valadares Golconda mining district ⓘ Ipê mine	[Fluorcalciomicrolite, Oxycalciomicrolite] Moore (2005)
ⓘ Golconda pegmatite field	Josef Vajdak (Peque Rare Minerals) +1 other reference
Itinga Monte Belo ⓘ Urubu mine	Moore (2006)
Nazareno ⓘ Chi-Chico claim	[var: Bariomicrolite (of Hogarth 1977), Hydrokenomicrolite] van der Veen (1963) +1 other reference
ⓘ Fumal pegmatite	[Oxycalciomicrolite] Menezes da Silva et al. (2020) +1 other reference
ⓘ Volta Grande mine (Mibra mine)	[Fluorcalciomicrolite, Hydrokenomicrolite, Hydroxycalciomicrolite, Kenomicrolite, Uranmicrolite (of Hogarth 1977)] Lagache et al. (1997) +1 other reference
Poços de Caldas ⓘ Morro do Ferro	Baretto & Fujimori (1986)
ⓘ Virgem da Lapa	[Uranmicrolite (of Hogarth 1977)] Sauer (1982) +1 other reference
Paraíba Frei Martinho Quixaba ⓘ Alto do Mussu claim	[Fluornatromicrolite] Pavel M. Kartashov (n.d.)
ⓘ Alto Quixaba claim	[Fluornatromicrolite] Ferreira et al. (2005)
ⓘ Junco do Seridó	Specimen in the collection of Richard ...
ⓘ Alto Cajazeiras	[Hydrokenomicrolite, Uranmicrolite (of Hogarth 1977)] Pavel M. Kartashov analytical data
ⓘ Alto Manoel Balduino claim	[Oxybismutomicrolite] Anthony (1997)
Nova Palmeira ⓘ Serraria pegmatite	Beurlen et al. (2008)
Pedra Lavrada ⓘ Alto Patrimônio pegmatite	Murdoch (1955)
Picuí ⓘ Alto Benedito pegmatite	Cassedanne et al. (1991)
ⓘ Caiçara pegmatite	Beurlen et al. (2008)
Rio Grande do Norte ⓘ Acari	[Oxybismutomicrolite] Pavel M. Kartashov analytical data 2021
Carnaúba dos Dantas Ermo ⓘ Ermo claim	Anthony (1997)
Equador ⓘ Alto do Giz pegmatite	[Hydrokenomicrolite-3R] rruff.geo.arizona.edu (n.d.) +2 other references
ⓘ Alto do Jacu	Lavinsky (n.d.)
ⓘ Mamões pegmatite	Beurlen et al. (2008)
Parelhas ⓘ Alto dos Quintos Mine	[var: Natrobistantite, Uranmicrolite (of Hogarth 1977)] Beurlen et al. (2008)
ⓘ Boqueirão pegmatite	Beurlen et al. (2008)
ⓘ Capoeira 1 pegmatite (Boqueirãozinho pegmatite)	[Uranmicrolite (of Hogarth 1977)] Beurlen et al. (2008)
ⓘ Carcará pegmatite	Beurlen et al. (2008)
ⓘ Túneis pegmatite	[Uranmicrolite (of Hogarth 1977)] Beurlen et al. (2008)
São Paulo Cajati ⓘ Mesquita Sampaio deposit	Oliveira et al. (2020)

Bulgaria
Burgas Province Sozopol Municipality Zidarovo ⓘ Zidarovo complex	Marinov +3 other references

Cameroon
North Region ⓘ Kitongo uranium deposit	Kouske et al. (2022)

Canada
British Columbia Kamloops Mining Division Blue River carbonatites ⓘ Fir carbonatite	Chudy T et al. (2014)
Manitoba Cross Lake North Group ⓘ Pegmatite No. 22 (Gottcha Claim)	Ercit et al. (2010)
Lac-du-Bonnet area Bernic Lake ⓘ Tanco Mine	[Hydroxykenomicrolite, Uranmicrolite (of Hogarth 1977)] 153-155. +4 other references
Cat Lake - Winnipeg River pegmatite field Donner Lake ⓘ High Grade Dyke pegmatite (High-Grade Dike pegmatite)	Bannatyne (1985) +1 other reference
ⓘ Huron Claim pegmatite	Paul (1984) +1 other reference
Greer Lake ⓘ Annie Claim #3 pegmatite	Masau et al. (2002)
ⓘ Cleo pegmatite	Bannatyne (1985)
ⓘ GL-3 pegmatite	Bannatyne (1985)
ⓘ GL-8 pegmatite	Bannatyne (1985)
ⓘ GL12 pegmatite	Bannatyne (1985)
ⓘ Grace claim	Bannatyne (1985)
ⓘ Grace No. 2 claim (Beryl dike)	Bannatyne (1985)
Whiteshell Park ⓘ Huron pegmatite	Bannatyne (1985)
Shatford Lake ⓘ Shatford Lake pegmatites	Paul (1984)
ⓘ Bunty claims	Bannatyne (1985)
Red Cross Lake ⓘ Red Cross Lake pegmatites	[Fluorcalciomicrolite, Hydroxykenomicrolite] Cerny et al. 2012 +1 other reference
Northwest Territories Mackenzie Mountains Tungsten (Cantung) ⓘ Little Nahanni Pegmatite Group	[Uranmicrolite (of Hogarth 1977)] Groat et al. (2003)
Nova Scotia Lunenburg Co. New Ross ⓘ Reeves pit (Reeves tin pit)	Nova Scotia Mineral Occurrence Database
Ontario Kenora District Lilypad Lakes pegmatites Ferguson Lake Area ⓘ Pollucite Dike	J.C. Pedersen (2000)
ⓘ South Dike	J.C. Pedersen (2000)
Opikeigan Lake Area ⓘ Rubellite Dike	J.C. Pedersen (2000)
Pakeagama Lake Area PAK Lithium Project ⓘ Pakeagama Lake pegmatite	[Uranmicrolite (of Hogarth 1977)] Breaks +2 other references
Paterson Lake Area ⓘ Marko’s pegmatite	[Uranmicrolite (of Hogarth 1977)] Tindle et al. (1998)
Raleigh Lake Area ⓘ Raleigh Lake pegmatites
Root Lake pegmatite group Root Lake Area ⓘ McCombe pegmatites	Tindle et al. (2005)
ⓘ Separation Rapids Lithium Project (Separation Lake area)	[Uranmicrolite (of Hogarth 1977)] Avalon Advanced Materials Inc.
Skinner Lake Area ⓘ Musselwhite Mine	Taylor et al. (2001)
Québec Abitibi-Témiscamingue Rouyn-Noranda TE ⓘ Powell D-zone occurrence	Schofield et al. (2024)
ⓘ Powell F-zone occurrence	Schofield et al. (2024)

Chile
Atacama Copiapó Province Copiapó ⓘ Portezuelo de Pajas Blancas deposit	Miranda-Díaz et al. (2022)
Huasco Province Las Cañas district ⓘ Las Canas	fluid inclusion microthermometry et al. (1-2) +1 other reference
Maule ⓘ San Pedro volcano	COSTA (2002)

China
Anhui Hefei Lujiang Co. Huangtun township (Huangtunxiang; Huangtong township; Huangtongxiang) ⓘ Huangtun S–Fe–Au–Cu deposit	Fang et al. (2026)
Fujian Nanping Yanping District Nanping pegmatite field ⓘ Pegmatite No. 31	Rao +9 other references
Gansu Jiuquan Aksai Co. ⓘ Yushishan Nb–Ta ore deposit	Yu et al. (2023)
Guazhou Co. ⓘ Liuyuan ophiolite complex	Sun et al. (2026)
Subei Co. ⓘ Delenuoer ophiolite	Ma et al. (2020)
Guangxi Guilin Gongcheng Co. Limu Ta-Sn ore field ⓘ Jinzhuyuan Mine	Zhu et al. (2001) +1 other reference
ⓘ Laohutou Mine	Zhu et al. (2001) +1 other reference
ⓘ Shizilian Mine	Feng et al. (2019)
ⓘ Shuiximiao Mine	Zhu et al. (2001) +2 other references
ⓘ Yucai Mine	Feng et al. (2019)
Quanzhou Co. ⓘ Maoantan pegmatite field	Renke Li and Xuming Zhang (1995)
Henan Sanmenxia Lushi County Guanpo ⓘ Guanpo pegmatite field	Ruiling He and Enkui Cao (1985)
ⓘ Pegmatite vein no. 309	[Fluorcalciomicrolite] Fan G. et al. (2013)
ⓘ Nanyangshan pegmatite field	[Hydrokenomicrolite, Hydromicrolite, Hydroxynatromicrolite, Oxystibiomicrolite] Qu et al. (2023)
ⓘ Nanyangshan 703 deposit	[Fluornatromicrolite, Hydrokenomicrolite, Hydromicrolite, Hydroxynatromicrolite, Oxystibiomicrolite] Yuan et al. (2022)
Hunan Chenzhou Linwu Co. ⓘ Xianghualing Sn-polymetallic ore field	Li et al. (2023)
Hengyang Leiyang Co. ⓘ Shangbao Mine	Xiangli Chen et al. (2003) +1 other reference
Inner Mongolia Alxa League (Alashan Prefecture) Ejin Banner (Ejina Co.) ⓘ Dongqiyishan polymetallic ore field	Hong Liu (1986)
Hohhot City (Huhehaote Prefecture) Wuchuan County ⓘ Zhaojinggou Nb-Ta deposit	Fengjun Nie et al. (2013)
Xilingol League (Xilinguole Prefecture) Bordered Yellow Banner (Xianghuang Co.) ⓘ Jiabusi Ta-Nb deposit	Zhang et al. (2022)
Jiangsu Suzhou Huqiu District ⓘ Shananbang Ta-Nb deposit	Jianping He (2006)
Jiangxi Ganzhou Quannan Co. ⓘ Dajishan Mine (Tachishan Mine)	Zongzhen Zhang (1974) +3 other references
Shicheng Co. ⓘ Hailuoling Nb-Ta deposit	Faning Wang (1990) +1 other reference
Ji'an Suichuan Co. ⓘ Xigang Ta-Nb deposit	[Uranmicrolite (of Hogarth 1977)] Yunhuai Lin and Shiyang Chen (1985)
Shangrao Hengfeng Co. Lingshan complex ⓘ Huangshan Nb-Ta deposit	[Fluorcalciomicrolite] Zhu et al. (2026)
ⓘ Songshugang Nb-Ta-W-Sn deposit (Geyuan Nb-Ta-W-Sn deposit)	Ye et al. (1998) +1 other reference
Yichun Yuanzhou District ⓘ Hejiaping Mine	Shufang He and Jianping Lu (2001)
ⓘ Wugongshan complex	Ma et al. (2026)
Yichun complex (Yashan batholith) ⓘ Yichun Mine (Mine No. 414)	Desong Lin (1993) +4 other references
Liaoning Chaoyang Kazuo County Xiaotazigou-Dongwujiazi ore field ⓘ Dongwujiazi Au deposit	Fu et al. (2026)
Qinghai Haixi Mongol and Tibetan Autonomous Prefecture Wulan Co. (Ulan Co.) ⓘ Shaliuquan Nb-Ta deposit	Feng et al. (2024)
Tibet Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Lhozhag Co. (Luozha Co.) ⓘ Lalong Dome	Fu et al. (2023)
Xigazê Prefecture (Rikaze Prefecture; Shigatse Prefecture) ⓘ Gyirong County	Hu et al. (2023)
ⓘ Tsalung pollucite-bearing pegmatite/aplite	Hu et al. (2023)
Tingri Co. (Dingri Co.) ⓘ Hermit's Gorge	Rucheng Wang et al. (2018)
Xinjiang Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) Aletai Co. (Altay Co.) Dakalasu Mine (Dahalasu Mine) ⓘ Dakalasu No.1 pegmatite deposit	Xia et al. (2025)
Fuyun Co. (Koktokay Co.) ⓘ Koktokay pegmatite field (Keketuohai pegmatite field)	[var: Natrobistantite, Hydroxynatromicrolite] [AmMin 85:1324]
Altay Mine ⓘ Koktokay No. 3 pegmatite (Altay No. 3 pegmatite)	[Uranmicrolite (of Hogarth 1977)] Tianren Zou et al. (1986)
ⓘ Koktokay No. 1 pegmatite	Yin et al. (2015)
Qinghe Co. (Qinggil Co.; Chinggil Co.) Dakalasu-Kekexier pegmatite field ⓘ Dakalsu pegmatite	Zhou
Turpan Shanshan Co. ⓘ Bailingshan Fe-(Cu) deposit	Zhang et al. (2022)
Yunnan Baoshan Longling County ⓘ Huangliangou Be-Nb-Ta pegmatite deposit	[Uranmicrolite (of Hogarth 1977)] Gao et al. (2026)

Czech Republic
Karlovy Vary Region Cheb District Lázně Kynžvart ⓘ Bílý Kámen pegmatite quarry	[Uranmicrolite (of Hogarth 1977)] Černý et al. (Weisser Stein)
Moravian-Silesian Region Bruntál District Malá Morávka Praděd Mountain ⓘ Bělá pegmatite	[Uranmicrolite (of Hogarth 1977)] Pauliš P. et al. (Kutna Hora, issue 1)
Olomouc Region Jeseník District Bělá pod Pradědem ⓘ V kotli pegmatite	Kruťa et al. (1968)
Šumperk District Branná ⓘ Dämmbaude	Novák (2003)
Velké Losiny Maršíkov (Marchendorf) ⓘ D6e pegmatite	Ddolníček Z et al. (2020)
ⓘ Rasovna (Schinderhübl)	[Uranmicrolite (of Hogarth 1977)] Novák
ⓘ Střelecký důl (Scheibengraben)	[Uranmicrolite (of Hogarth 1977)] Novák +2 other references
South Bohemian Region Český Krumlov District Nová Ves ⓘ Nová Ves pegmatite	[Fluorcalciomicrolite, Fluornatromicrolite] Welser +1 other reference
Ústí nad Labem Region Teplice District Dubí Cínovec ⓘ Borehole CS-1	Breiter et al. (2024)
Vysočina Region Jihlava District ⓘ Jihlava	Novák et al. (1996)
Puklice ⓘ Puklice pegmatites	Bull. Minéral.
Třebíč District Kožichovice ⓘ Kožichovice II pegmatite	Výravský et al. (2017)
ⓘ Radkovice u Hrotovic	Scarlett Urbanová (2021)
Žďár nad Sázavou District ⓘ Dobrá Voda	[Hydroxykenomicrolite] Novák et al. (1999)
ⓘ Pikárec	Flégr et al. (2017)
ⓘ Řečice	Novák +7 other references
Věžná ⓘ Věžná I pegmatite	www.cseg.ca/conferences/2000/556.PDF. +2 other references
ⓘ Věžná II pegmatite	Cerny et al. (1964)

DR Congo
Maniema ⓘ Punia Territory	Kristiansen (2001)
North Kivu Masisi Territory Bahunde ⓘ Rubaya	Pezzotta et al. (2020)
Osso Mumba ⓘ Mumba cassiterite gravels	Melcher et al. (2015)
South Kivu Kalehe Territory ⓘ Numbi	Loun et al. (2018)
ⓘ Misumari II mine	Loun et al. (2018)
ⓘ Mungwe mine	Loun et al. (2018)
Mwenga Territory ⓘ Kobokobo pegmatite	BM 84 (1961) +1 other reference
Tanganyika ⓘ Manono-Kitotolo mine	[Hydroxycalciomicrolite] Pavel M. Kartashov analythical data of ...

Ecuador
Carchi Province Awa Indian Preserve ⓘ Camumbi River gold placer	Barron et al. (2025)

Egypt
Red Sea Governorate ⓘ Abu Dabbab Massif	[Uranmicrolite (of Hogarth 1977)] Alekseev et al. (2023)
ⓘ Kab Amiri	Taalab et al. (2023)
ⓘ Mueilha granite	Michaud et al. (2025)
ⓘ Nikeiba	Abdel Gawad et al. (2025)
ⓘ Nuweibi Complex	[Uranmicrolite (of Hogarth 1977)] Helba et al. (1997) +1 other reference
ⓘ Um Solimate	Ali et al. (2021)

Eswatini
Lubombo Region ⓘ Sinceni Mountain	Trumbull (1995)
Sinceni pegmatite field Sinceni West area ⓘ Zishineni	[Fluorcalciomicrolite] Grew et al. (2018)

Ethiopia
Oromia Region Kenticha pegmatite field ⓘ Kenticha mine	[Uranmicrolite (of Hogarth 1977)] Pavel M. Kartashov (n.d.) +1 other reference

Finland
Kanta-Häme Forssa ⓘ Kiimassuo pegmatite	[Fluorcalciomicrolite, Fluorcalciomicrolite var: Titan-uranoan Fluorcalciomicrolite] Ilkka Mikkola data
Tammela ⓘ Sukula Pegmatites	[var: Stannomicrolite (of Hogarth 1977), Oxystannomicrolite] Vorma et al. (1967) +1 other reference
Kymenlaakso Kotka ⓘ Juurikorpi	Ilkka Mikkola collection (of Hogarth)
ⓘ Murskelouhos pegmatite	Ilkka Mikkola collection +1 other reference
ⓘ Topaz quarry	Lahti Seppo I. 2011. Kotkan ...
North Savo Rautalampi ⓘ Kiviniemi	Ahven (2012)
Pirkanmaa Orivesi Eräjärvi area ⓘ Eräpyhä pegmatite	Lahti (1981)
ⓘ Tiainen pegmatite	Lahti et al. (1983)
ⓘ Viitaniemi pegmatite	[Fluorcalciomicrolite, Fluornatromicrolite, Hydroxycalciomicrolite, Uranmicrolite (of Hogarth 1977)] Sandström et al. (2009)
Valkeakoski ⓘ Pyörönmaa pegmatite	[Yttromicrolite (of Hogarth)] Jyrki Autio collection. Pavel M. ...
South Karelia Lappeenranta ⓘ Ihalainen limestone quarry	[Hydroxycalciomicrolite] Martin et al. (2026)
South Ostrobothnia Seinäjoki Peräseinäjoki ⓘ Haapaluoma pegmatite	Haapala (1966)
Southwest Finland Kimitoön (Kemiönsaari) Kimitoön Island ⓘ Rosendal pegmatite	Laitakari (1967)
Uusimaa Myrskylä ⓘ Kankkila pegmatite	Ilkka Mikkola collection

Finland/Russia
Wyborg batholith ⓘ Kymi intrusion	Haapala et al. (2005)
ⓘ W-Sn-Be occurrence	Lukkari (2007)

France
Auvergne-Rhône-Alpes Allier Vichy ⓘ Échassières	Termier (1902)
ⓘ Beauvoir quarry	[Hydrokenomicrolite] G. Aubert : "Les coupoles granitiques de Montebras et d'Echassières (Massif Central Français) +2 other references
Puy-de-Dôme Riom Saint-Angel ⓘ Menat-Malmouche Maars	Vincent et al. (1977) +1 other reference
Brittany Finistère Quimper ⓘ Tréguennec	Chauris et al. (1985)

Germany
Rhineland-Palatinate Germersheim Jockgrim Rheinzabern ⓘ Holcim gravel pit	Oberthür et al. (2016)
Saxony Görlitz District ⓘ Lausitz Volcanic Field	Büchner et al. (2015)
Thuringia Hildburghausen District Heldburg ⓘ Heldburger Gangschar Volcanic Province	Lippolt (1982) +3 other references
ⓘ Heldburg Phonolite Plug	Lippolt (1982) +3 other references

Ghana
Central Region ⓘ Winneba-Mankoadze area LCT pegmatites	Adams et al. (2023)
Oti Region ⓘ Akokrowa-Asukawkaw-Okanease range	Addae et al. (2026)

Greenland
Kujalleq Igaliku Narsaarsuk Plateau ⓘ Narssârssuk pegmatite	Bøggild (1953) +1 other reference

Hungary
Borsod-Abaúj-Zemplén County Miskolc District Bükkszentkereszt ⓘ Bagoly Hill	[Fluorcalciomicrolite] Gál P. (2014)

India
Chhattisgarh Dantewada District ⓘ Kawadgaon-Challanpara pegmatite field	Singh et al. (2017)

Indonesia
East Java Province Bondowoso Regency ⓘ Raung Volcano
ⓘ Merapi Volcano	Knuever et al. (2023)
West Java Province Garut Regency ⓘ Mekarbakti prospect	Imawan et al. (2024)
West Sulawesi Province Mamuju Regency ⓘ Rantedoda-Taan	Firmansyah et al. (2025)

Iran
East Azerbaijan Province Ahar County ⓘ Sabalan volcanic plateau	Alberti et al. (1976) +4 other references
Isfahan Province Aran and Bidgol County ⓘ Veshnaveh	Nezafati et al. (2017)
Markazi Province Zarandieh County ⓘ Mamuniyeh Cu deposit	Goudarzi et al. (2024)
South Khorasan Province Nehbandan County ⓘ Divar deposit	Pourkaseb et al. (2017)
Yazd Province Ardakan County Aqda District Narestan Rural District ⓘ Qaleh-Khargooshi complex	Torabi (2009)

Ireland
Leinster Carlow County ⓘ Seskinnamadra	No References
Wicklow County Shillelagh ⓘ Stranakelly	Steiger et al. (1974) +2 other references

Italy
Abruzzo L'Aquila Province Rocca di Cambio ⓘ Cimina Ignimbrite	Mattioli et al. (2025)
Lazio Metropolitan City of Rome Capital ⓘ Alban Hills	Knuever et al. (2023)
Lombardy Brescia Province Cevo Upper Val Saviore Monte Foppa (north slope) Forcel Rosso Gully (Forcel Rosso Pass) ⓘ Pegmatite occurrences	Pezzotta +2 other references
Lecco Province Colico ⓘ Piona Peninsula	VIGNOLA et al. (2007)
ⓘ Malpensata pegmatitic dyke (Olgiasca-Malpensata; Croce Quarry; Secondi dyke)	[Oxycalciomicrolite] Vignola et al. (2011)
Sondrio Province Chiavenna ⓘ Tanno Pegmatitic Field	[Uranmicrolite (of Hogarth 1977)] - (n.d.)
Chiesa in Valmalenco ⓘ Sissone Valley	Bedognè et al. (1993)
Piedmont Verbano-Cusio-Ossola Province Baveno Oltrefiume Mount Camoscio ⓘ Seula mine	Guastoni et al. (2004)
Craveggia Rio Vasca ⓘ Piano del Lavonchio (Piano dei Lavonchi)	[Uranmicrolite (of Hogarth 1977)] - (n.d.)
Druogno Orcesco ⓘ Alpe Rosso	[Hydroxycalciomicrolite, Oxycalciomicrolite, Uranmicrolite (of Hogarth 1977)] - (n.d.)
Toceno Val di Crana ⓘ Val di Crana pegmatites	- (n.d.)
ⓘ Fiume pegmatite	[Oxycalciomicrolite] Guastoni et al. (2019)
Trontano Cosasca ⓘ Grignaschi Quarry	[Hydroxycalciomicrolite, Uranmicrolite (of Hogarth 1977)] De Michele (1974)
Pizzo Marcio ⓘ Pizzo Marcio North dyke	[Hydroxycalciomicrolite, Oxycalciomicrolite, Uranmicrolite (of Hogarth 1977)] Mattioli (1988) +6 other references
ⓘ Pizzo Marcio South-East dyke	Appiani et al. (1995) +2 other references
ⓘ Pizzo Marcio South dyke	[Hydroxycalciomicrolite, Oxycalciomicrolite] Callegari et al. (2002) +2 other references
ⓘ Rio Graia	[Fluorcalciomicrolite, Hydroxycalciomicrolite, Uranmicrolite (of Hogarth 1977)] Piccoli et al. (2007)
ⓘ Rio Margologio	Albertini (2011)
ⓘ Vigezzo Valley	[Oxycalciomicrolite] Menezes da Silva et al. (2020)
Sardinia Nuoro Province Orotelli ⓘ Nuraghe Piscapu pegmatite field	Pani E. (1995)
South Sardinia Province Villaputzu ⓘ Riu Gironi basanite outcrop (Riu Girone basanite outcrop; Rio Gironi basanite outcrop)	Lustrino et al. (1996) +3 other references
Sicily Hyblean Plateau (Hyblean Mountains; Hyblaean Plateau; Hyblaean Mountains) ⓘ Pachino-Passero Volcano	Barberi et al. (1974) +1 other reference
Metropolitan City of Messina Eolie Islands (Aeolian Islands) Lipari ⓘ Stromboli Island	Renzulli +4 other references
ⓘ Vulcano Island	Barberi et al. (1974) +6 other references
Trapani Province ⓘ Pantelleria Island	Washington (1909) +11 other references
Trentino-Alto Adige/Südtirol Trento Province Predazzo ⓘ Al Fol quarry (Sacac quarry)	Vecchi et al. (2013)
Tuscany Livorno Province Campo nell'Elba ⓘ San Piero in Campo	[Uranmicrolite (of Hogarth 1977)] Orlandi et al. (1985)
ⓘ Facciatoia Quarry
ⓘ Fonte del Prete	[Uranmicrolite (of Hogarth 1977)] Aurisicchio et al. (2002)
ⓘ Grotta d'Oggi	Orlandi P. & Pezzotta (1996) +1 other reference
ⓘ La Speranza (Pisani's Quarry)	[Uranmicrolite (of Hogarth 1977)] Orlandi P. & Pezzotta (1996)
ⓘ Rosina vein (Rosina pegmatite)	[Uranmicrolite (of Hogarth 1977)] Orlandi P. & Pezzotta (1996)
ⓘ San Silvestro vein	Collection Museo Mineralogico Luigi ...
Sant'Ilario in Campo ⓘ Forcioni	[Fluornatromicrolite] Tobias U. Prediger collection
Marciana ⓘ Procchio	Nannoni R.

Japan
Fukuoka Prefecture Fukuoka City ⓘ Nagatare (Nagatareyama; Nagatare mine)	[Fluorcalciomicrolite] Nagashima et al. (1960) +2 other references
Fukushima Prefecture Koriyama City ⓘ Atagoyama	[Hydroxycalciomicrolite] Matsubara et al. (2013)
Ibaraki Prefecture Hitachiota City ⓘ Myoukenyama	[Fluorcalciomicrolite, Oxystibiomicrolite, Uranmicrolite (of Hogarth 1977)] Matsubara et al. (1995) +1 other reference
Miyazaki Prefecture Nobeoka City Ohkueyama (Okueyama) ⓘ Lithium pegmatite	Seiichiro Uehara et al. (2011)

Kazakhstan
East Kazakhstan Region Irtysh River ⓘ Bakennoe Ta Deposit	[Uranmicrolite (of Hogarth 1977)] Pavel M. Kartashov (n.d.)
Samar District ⓘ Belogorskoe Ta-Be deposit	Pavel M. Kartashov (n.d.)
Ulan District ⓘ Asubulak ore field	Oitseva et al. (2017)
ⓘ Ognevka Ta deposit	[Fluorcalciomicrolite, Fluornatromicrolite] Pavel M. Kartashov (n.d.)

Kyrgyzstan
Batken Region Turkestan Ridge Karasu-Karavshinskoye Asan-Usun glacier ⓘ Akopovaite type locality	Karpenko V.Yu. et al. (OH)

Madagascar
Amoron'i Mania Ambatofinandrahana District Fenoarivo ⓘ Ambalalehifotsy pegmatite	Pers.com Roy Kristiansen 1996
Ambositra District Sahatsiho Ambohimanjaka Manandona Valley ⓘ Antandrokomby pegmatite	[Hydroxykenomicrolite, Uranmicrolite (of Hogarth 1977)] Nizamoff et al. (2000)
Atsinanana Vatomandry District Ambalavolo ⓘ Takarindoha Volcanic Field	Lacroix (1923)
Diana Ambanja District Antsirabe ⓘ Ampasibitika	Behier (1963)
ⓘ Massif d'Ambre	Lacroix (1922) +5 other references
Itasy Miarinarivo ⓘ Itasy Volcanic Field	Lacroix (1912) +3 other references
Matsiatra Ambony Ikalamavony District Fitampito ⓘ Adaboroa pegmatite	Behier (1963)
ⓘ Malakialina pegmatite	Behier (1963)
ⓘ Sahatany Pegmatite Field (Mt Ibity area)	Ranorosoa (1986)
Sofia Mampikony District ⓘ Betanimena pegmatite	Behier (1963)
Vakinankaratra Antsirabe II District Ibity Sahatany Valley ⓘ Ankarinarivo pegmatite	Ranorosoa (1986)
ⓘ Ilapa	Ranorosoa (1986)
ⓘ Ilontsa (Ilotsa)	Pezzotta (2007)
ⓘ Manjaka (Sahananana)	Pezzotta (2007)
Tsarafara Pegmatites ⓘ Tsarafara Nord (Ambalaroy)	Ranorosoa (1986)
ⓘ Tsarafara Sud (Ankadilava)	Ranorosoa (1986)
ⓘ Vohidahy	Ranorosoa (1986)
Mangarano ⓘ Ambatonapetraka pegmatites	Ranorosoa (1986)
ⓘ Antsofimbato pegmatites	Ranorosoa (1986)
Betafo District Ambohimanambola Anjanabonoina pegmatites ⓘ Sarodivotra	De Vito et al. (2006)
Andrembesoa Tetezantsio-Andoabatokely Pegmatite Field ⓘ Ampanodiana North pegmatite	Pezzotta (2007)
ⓘ Ampasogona pegmatite	Pezzotta (2007)
Anosiarivo Manapa Antsentsindrano ⓘ Antsongombato gem mine	Demartin et al. (2001)

Mexico
Zacatecas Sombrerete Municipality ⓘ Sombrerete meteorite	Ruzicka et al. (2006)

Mongolia
Dornogovi Province Dalanjargalan District ⓘ Khukh Del Uul pegmatite	Dostal et al. (2022)
Erdene District ⓘ Khamaryn– Khural–Khiid combustion metamorphic complex	Savina et al. (2020) +1 other reference
ⓘ Unchzhul massif	Pavel M. Kartashov (n.d.)
Töv Province Choir-Nyalga basin ⓘ Nyalga Combustion Metamorphic complex	Peretyazhko et al. (2018)
ⓘ Camel	Peretyazhko et al. (2018)
ⓘ Crown	Peretyazhko et al. (2018)
Nailakh Soum Janchivlan ⓘ Janchivlan complex	Tumenbayar et al. (2000)
ⓘ Urt Gozgor placer	Tumenbayar et al. (2000)

Morocco
Fès-Meknès Region El Hajeb Province Agourai Cercle Sebt Jahjouh Caïdat ⓘ Oued Laqtib	Mezougane et al. (2022)
Oriental Region Taourirt Province ⓘ Rekkame volcanic province	JÉRÉMINE (1955) +1 other reference

Mozambique
Maputo Province Boane District ⓘ Boane Occurrence	TORRE DE ASSUNCAO et al. (1962)
Sofala Province ⓘ Bunga Hill	Teale et al. (1923)
Gorongosa District ⓘ Chuata Phonolite Plug	Teale et al. (1923)
Zambezia Province ⓘ Alto Ligonha Pegmatite Field	[Uranmicrolite (of Hogarth 1977)] Wilson et al. (2000)
Gilé district ⓘ Napakhala	[Fluornatromicrolite, Oxycalciomicrolite] MnhnL collection +1 other reference
Alto Mólocuè District ⓘ Munhamola Pegmatite	Wilson et al. (2000)
ⓘ Murropoci-Nuaparra group	Wilson et al. (2000)
ⓘ Namacotche LCT pegmatites	Gomes et al. (2022)
ⓘ Napire Pegmatite	Wilson et al. (2000)
Gilé District Muiane-Naipa group ⓘ Muiâne pegmatite (Muiâne mine; Emdal mines)	[Fluorcalciomicrolite] Mendes (1961) +1 other reference
ⓘ Naipa mine	[Fluornatromicrolite, Uranmicrolite (of Hogarth 1977)] Rudy Bolona specimen & photo
ⓘ Nampoça Pegmatite	Wilson et al. (2000)
Mocuba District Mocuba ⓘ Melatube pegmatite	Moiana (2010)
ⓘ Vila Maior pegmatite	Moiana (2010)
Mulevala District ⓘ Marropino mine (Maropine mine)	Schappmann (2005)
ⓘ Morrua Mine	Schappmann (2005)

Namibia
Erongo Region Dâures Constituency ⓘ Sandamap North Farm 115	von Bezing (2007)
Karibib Constituency ⓘ Neuschwaben Farm 73 (Neu Schwaben)	von Bezing (2007)
Okatjimukuju Farm 55 (Friedrichsfelde Farm) ⓘ Clementine II pegmatite	Keller et al. (1989)
Okongava Ost Farm 72 ⓘ Rubikon Mine	Bezing et al. (2007)
ǁKaras Region Karasburg East ⓘ Tantalite Valley	von Bezing (2007)
ⓘ Homestead pegmatite	Baldwin (1989) +1 other reference
ⓘ Lepidolite pegmatite	Baldwin (1989) +1 other reference
ⓘ White City pegmatites	Baldwin (1994)
ǃNamiǂNûs Constituency ⓘ Dicker Willem (Dicker Wilhelm; Garubberg)	Jackson +6 other references

New Zealand
Gisborne Region ⓘ Lottin Point	Pirajno (1980)
New Zealand Outlying Islands Kermadec Islands ⓘ Brothers Volcano	Martin et al. (2023)

Norway
Agder Birkenes Vegusdal Katterås ⓘ Katterås 4 Feldspar Quarry	Frigstad (1968)
Evje og Hornnes Landsverk ⓘ Landsverk 1 Feldspar Quarry (Jokeli)	Frigstad (1999)
ⓘ Li	Frigstad (1999)
ⓘ Li 04 Feldspar Quarry (Liheia)	Frigstad (1968)
ⓘ Li 06 Feldspar Quarry	Stensrud (2009)
Gjerstad ⓘ Mørkhøgda Pegmatite	Bjørlykke (1935)
Iveland Frikstad ⓘ Frikstad 02 Feldspar Quarry (Litjern)	Breivik et al. (2008)
Håverstad ⓘ Håverstad 4 Feldspar Quarry (Tuten 2)	Frigstad (1968)
ⓘ Landås	[Hydroxycalciomicrolite] Bjørlykke (1934) +1 other reference
Beinmyr Feldspar Quarries (Landås 07 Quarries) ⓘ Landås 07h Feldspar Prospect (Beinmyr 8)	Stensrud (2009)
ⓘ Landås 01 Feldspar Quarry	Bjørlykke (1934)
Ljosland ⓘ Storsynken (Ljosland 10 Feldspar Quarry)	Bjørlykke (1935) +1 other reference
Mølland ⓘ Rostadheia	Neumann et al. (1960)
Rossås ⓘ Rossås 05 Feldspar Quarry	Frigstad (1968)
ⓘ Solås Pegmatite	Neumann (1985) +1 other reference
Akershus Nesodden ⓘ Spro pegmatite	Raade (1965)
ⓘ Bouvet Island	Imsland et al. (1977) +4 other references
Nordland Alstahaug Sandnessjøen Botn ⓘ Sandnessjøen Pegmatite	Nordrum et al. (1999)
Hamarøy Drag ⓘ Erlinggruva	Husdal (2008)
ⓘ Jennyhaugen	Neumann (1985)
Meløy Holandsfjorden ⓘ Ågskardet LCT Pegmatite	Kristiansen (1972) +2 other references
Narvik ⓘ Stetind pegmatite	Husdal (2008)
Østfold Halden Idd Aspedammen ⓘ Herrebøkasa	Sørlie (2003)
Moss Dillingøya (Dillingö) ⓘ Hattvik Feldspar Quarry ?	Brøgger (1906)
Telemark Drangedal Tørdal ⓘ Heftetjern pegmatite	[var: Scandium Microlite (of Bergstøl & Juve), Hydroxycalciomicrolite] Bergstøl et al. (1988) +1 other reference
ⓘ Høydalen	Oftedal (1943) +1 other reference
Troms og Finnmark Tjeldsund Tjeldøya Kjerstadfjellet ⓘ Tjeldøya Pegmatite	Lindahl (1990)
Vestfold Larvik Commune Tjølling Håkestad ⓘ ~~Håkestad Quarry~~	Engvoldsen et al. (1991)

Pacific Ocean
ⓘ Emperor Seamounts	Clague et al. (1987) +5 other references
Hongyan Seamounts ⓘ Ewing Seamount	Sun et al. (2026)
Magellan Seamounts ⓘ Govorov Guyot	Peretyazhko et al. (2022)

Pakistan
Gilgit-Baltistan Roundu District Haramosh Mountains ⓘ Stak Nala	Laurs et al. (1998) +1 other reference
ⓘ Rondu	[Fluornatromicrolite] boyuan zhang Collection
Shigar District Basha Valley ⓘ Bisil	Dudley Blauwet
Braldu Valley ⓘ Chhappu	Blauwet et al. (2004)
ⓘ Dassu	[Fluornatromicrolite] Laurs et al. (1998)
Nyet ⓘ Nyet Bruk	Blauwet et al. (2004)
ⓘ Shigar Valley	[Fluornatromicrolite] Pavel M. Kartashov (n.d.)
ⓘ Skardu Area	[Fluornatromicrolite] imported from Shigar District +2 other references

Papua New Guinea
Western Province ⓘ Meahill basalts	Lunge et al. (2026)
ⓘ Yemsigi basalts	Lunge et al. (2026)

Peru
La Libertad Santiago de Chuco Province Quiruvilca District ⓘ Quiruvilca Mine	Lewis (1956)

Philippines
Luzon Bicol Region Albay Province ⓘ Mayon Volcano	Ruth et al. (2021)

Poland
Lower Silesian Voivodeship Dzierżoniów County Piława Górna ⓘ DSS Piława Górna Quarry	PIECZKA et al. 2010: Nb-Ta minerals in ...
ⓘ Julianna pegmatite	[Fluorcalciomicrolite, Hydromicrolite] SZUSZKIEWICZ et al. (2013) +1 other reference
ⓘ Lithium pegmatite	Pieczka et al. (2012)
Karkonosze County Gmina Podgórzyn Zachełmie ⓘ Rudzianki pegmatite	Matyszczak (2018)
ⓘ Karkonosze Granite	Kozłowski et al. (2016)
Wrocław County Gmina Jordanów Śląski ⓘ Jordanów nephrite quarry	Pieczka et al. (2024) +1 other reference
Ząbkowice Śląskie County Gmina Ząbkowice Śląskie Szklary ⓘ Mt. Szklana Mine (Szklary pegmatite)	Pieczka (2006) +3 other references

Portugal
Azores ⓘ Terceira	Weston (1964) +6 other references
Braga Vieira do Minho Anjos e Vilar do Chão Muro Alto Mine ⓘ Eastern pegmatite	[Uranmicrolite (of Hogarth 1977)] Dias et al. (2009)
ⓘ Western pegmatite	[Uranmicrolite (of Hogarth 1977)] Dias et al. (2009)
Castelo Branco Idanha-a-Nova União das Freguesias de Zebreira e Segura ⓘ Segura Mines (Segura mining field)	Antunes et al. (2013)
Guarda Guarda ⓘ Gonçalo	Neiva et al. (2001) +1 other reference
ⓘ Alvarrões Mine	António Monteiro collection
Porto Amarante Rebordelo ⓘ Vieiros Mines	Maijer 1965

Romania
Harghita County ⓘ Ditrău Complex	Hirtopanu (2006)

Russia
Chelyabinsk Oblast Kartalinsky District Zhabyk-Karagay massif Annenskoye pegmatite field ⓘ Lepidolite vein	[Hydroxylstibiomicrolite, Oxystibiomicrolite] Popova et al. (2010)
Miass ⓘ Pit No. 418	Sorokina et al. (2019)
Irkutsk Oblast ⓘ Vishnyakovskoe Rb-Ta deposit (Elash)	USGS Open File Report 2005-1252 p38 +1 other reference
Kamchatka Krai Yelizovsky District ⓘ Avachinsky volcano (Avacha volcano; Avachinskaya Sopka)	Kepezhinskas et al. (2026)
ⓘ Bakening volcano	Kepezhinskas et al. (2026)
ⓘ Gorely volcano	Kepezhinskas et al. (2026)
Mutnovskoe ⓘ Mutnovsky volcano	Potapova et al. (2026) +1 other reference
Komi Republic Timan Range ⓘ Chetlasskiy Kamen'	Nedosekova et al. (2021)
ⓘ Kosyu occurrence	Nedosekova et al. (2021)
Murmansk Oblast ⓘ Gremyakha-Vyrmes Massif	Liferovich et al. (2006)
Kolsky District ⓘ Shongui deposit	[Hydroxycalciomicrolite] Zozulya et al. (2024)
Kovdorsky District ⓘ Kovdor Massif	[Fluorcalciomicrolite, Hydroxycalciomicrolite, Hydroxykenomicrolite] Ivanyuk et al. (2017) +1 other reference
ⓘ Kovdor Zheleznyi Mine	Mikhailova et al. (2015)
Lovozersky District Karnasurt Mountain ⓘ Yubileinaya pegmatite	D’yachkov et al. (2022)
Keivy Mountains Western Keivy Massif ⓘ Ploskaya Mountain	[Kenoplumbomicrolite] Voloshin A.V. et al. (1986)
West Keivy Block ⓘ Rovgora Mountain (Rov-gora)	Pekov et al. (2008)
ⓘ Kontozero carbonatite	Petrovsky et al. (2012)
Voron'i Tundry ⓘ Polmos deposit	[Fluornatromicrolite, Hydroxynatromicrolite] Zozulya et al. (2024)
ⓘ Vasin-Myl'k Mt	[Hydroxykenomicrolite] Anthony et al. (1997) +2 other references
Primorsky Krai Khorolsky District Voznesenskii ore district ⓘ Pervomaisky deposit	Ryazantseva (2001)
Republic of Karelia Prionezhsky District ⓘ Yalguba Ridge	Svetov et al. (2023)
Sakha ⓘ Kildyam volcano complex	Kostin (2021)
Olenyoksky District Kuoikskoe field ⓘ Obnazhennaya pipe	Ugapeva et al. (2023)
Verkhoyansk District Yana River Basin Yana-Adycha Region Arga-Ynnakh-Khaya granite Massif Kester harpolith ⓘ Kester deposit	[Uranmicrolite (of Hogarth 1977)] Alekseev et al. (2020) +1 other reference
Sverdlovsk Oblast Malyshevo Izumrudnye Kopi area ⓘ Krasnoarmeiskii mine	[Hydroxycalciomicrolite] Pavel M. Kartashov analytical data (2012)
Prigorodny District Yuzhakovo Alabashka pegmatite field ⓘ Kazennitsa vein (Kazionnitsa)	webcenter.ru (2002)
ⓘ Mokrusha Mine	[Fluornatromicrolite] Pavel M. Kartashov (n.d.)
Rezhevsky District Lipovsk pegmatite field ⓘ Lipovka Mine (Lipovskoe Mine; Lipovskaya Mine; Lipovaya Mine)	[Uranmicrolite (of Hogarth 1977)] Igor.V. Pekov (2008)
Tuva Erzinsky District ⓘ Tastyg Spodumene deposit	USGS Open File Report 2005-1252 p87 +2 other references
Zabaykalsky Krai Aginsky District ⓘ Khangilai pluton	Breiter et al. (2024)
ⓘ Orlovka	www.minsocam.org (n.d.) +2 other references
Baleysky District ⓘ Etyka	www.minsocam.org (n.d.) +1 other reference
Khiloksky District ⓘ Orlovskoye	Thomas et al. (2009)
ⓘ Orlovskoye mine	Pavel M. Kartashov (n.d.)
Krasnochikoysky District Krasnyi Chikoy ⓘ Malkhan pegmatite field	Fialova et al. (2013)
ⓘ Danburitovaya pegmatite vein	Grant (2001)
ⓘ Solnechnaya pegmatite	[Fluornatromicrolite, Oxybismutomicrolite] Kasatkin et al. (2020)
Olovyanninsky District ⓘ Turga Massif	Ivanova et al. (2020)

Rwanda
Eastern Province Rwamagana District ⓘ Musha-Ntunga	Acke et al. (2025)
Western Province Ngororero District ⓘ Gatumba pegmatite field	[Uranmicrolite (of Hogarth 1977)] Pohl et al. (2013)
Muhororo ⓘ Buranga pegmatite	[Uranmicrolite (of Hogarth 1977)] Bertossa (1968) +1 other reference
ⓘ Rusororo pegmatite	Bertossa

Serbia
Central Serbia Bor District Bor ⓘ Čukaru Peki deposit	Bosić et al. (2025)

Slovakia
Banská Bystrica Region Banská Bystrica District Brusno ⓘ Sopotnická Valley	[Uranmicrolite (of Hogarth 1977)] Uher
Bratislava Region Bratislava Bratislava IV Devín ⓘ Jezuitské Lesy	[Fluorcalciomicrolite] Chudík et al. (2009)
Pezinok District Limbach ⓘ Limbach Brook	Uher et al. (2006)
Pezinok Slnečné Valley ⓘ Alluvial placers	[Uranmicrolite (of Hogarth 1977)] Uher et al. (n.d.)
Košice Region Rožňava District Dobšiná Dobšiná mining district ⓘ Malá Vlčia Valley pegmatite vein	[Hydroxycalciomicrolite] Uher P. et al. (2018)
ⓘ Gemerská Poloma	[Uranmicrolite (of Hogarth 1977)] Koděra et al. (1986)
Nitra Region Zlaté Moravce District Zlaté Moravce ⓘ Zlaté Moravce-1 well	Šarinová et al. (2018)
Trenčín Region Prievidza District Jalovec ⓘ Ráztočno pegmatite	Uher (2008)
Liešťany ⓘ Granitic pegmatite	[Fluorcalciomicrolite] Uher P. et al. (2020)
Trnava Region Piešťany District ⓘ Moravany nad Váhom	[Hydroxycalciomicrolite] Uher et al. (Považský Inovec)
ⓘ Striebornica	Uher P. +1 other reference

South Africa
KwaZulu-Natal King Cetshwayo District Municipality ⓘ Eshowe	[Uranmicrolite (of Hogarth 1977)] Cairncross et al. (1995)
Limpopo Mopani District Municipality Ba-Phalaborwa Local Municipality ⓘ Murchison Range	Cairncross et al. (1995)
Northern Cape Namakwa District Municipality Nama Khoi Local Municipality Steinkopf ⓘ Groendoorn IV pegmatite	Cairncross et al. (1995)
ⓘ Jakkalswater (Jackal's Water; Noumas I pegmatite; Blesberg mine)	Baldwin (1989)
ⓘ Kokerboomrand pegmatite	Baldwin (1994)
ⓘ Noumas I pegmatite (Blesberg)	Von Backstroem (1973) +1 other reference

South China Sea
Southeast sub-basin ⓘ Zhangzhongjing intraplate seamount	Lu et al. (2025)

South Korea
ⓘ Jeju Province	Lee (ed) +7 other references

Spain
Canary Islands Las Palmas Province Fuerteventura Fuerteventura Basal Complex ⓘ Esquinzo ultra-alkaline complex	Casillas et al. (2024)
Castile and Leon Salamanca Peñaparda ⓘ La Canalita Sn-rich pegmatitic dykes	Llorens et al. (2010) +1 other reference
Villar de la Yegua ⓘ Barquilla Sn-Ge-Cd-Cu-Fe Deposit	Pascua et al. (1997)
ⓘ Fuentes Villanas Mine	Pascua et al. (1997)
Catalonia Girona Alt Empordà Cadaqués ⓘ Cap de Creus	Alfonso et al. (2000)
ⓘ El Port de la Selva	& locality references +1 other reference
Galicia Lugo Ourol ⓘ Ponte Segade deposit	Canosa et al. (2011) +1 other reference
Ourense Viana do Bolo ⓘ Penouta mines	Guldris Leon +13 other references
Valencian Community Valencia Cofrentes ⓘ Cofrentes volcanic occurrences	Ancochea et al. (1984) +1 other reference

Sri Lanka


Sweden
Dalarna County Falun ⓘ Kårarvet	Am Min 64
ⓘ Nya Kårarvet	[Yttromicrolite (of Hogarth)] Pavel M. Kartashov analytical data (2013)
Norrbotten County Gällivare Leipojärvi ⓘ Suorravaara	[Hydrokenomicrolite] Analysis by the Swedish Museum of ...
Stockholm County Haninge Utö ⓘ Utö Mines	[Uranmicrolite (of Hogarth 1977)] Langhof et al. (1998)
ⓘ Grundberg outcrop	[var: Zero valent dominant member of the Microlite Group, Hydroxykenomicrolite] Selway et al. (2002)
ⓘ Nyköpingsgruvan	Selway et al. (2002)
Västerbotten County Skellefteå ⓘ Åkerberg mine	Grensman et al. (1991) +1 other reference
ⓘ Varuträsk	[var: Stannomicrolite (of Hogarth 1977), Oxycalciomicrolite, Oxystibiomicrolite] von Knorring et al. (1963) +1 other reference
Västmanland County Norberg Häste ore field ⓘ Stripåsen pegmatite
Västra Götaland County Orust ⓘ Timmerhult	[Oxycalciomicrolite]
Vänersborg Väne Ryr ⓘ Gundlebo	Otter (1989)
ⓘ Skuleboda	The Swedish Museum of Natural History ...

Switzerland
Grisons Maloja Region Bregaglia Upper Val Bregaglia Val Forno Muretto Valley ⓘ Muretto Pass	Stalder et al. (1998)
Moesa Region Grono Verdabbio ⓘ Piani di Verdabbio	"Silvano Turati' Collection"
San Vittore Monticello ⓘ Maiò Valley	[Fluorcalciomicrolite] Stefan Wolsfried collection

Thailand
Phuket Province ⓘ Sinpatana mine	Econ Geol (1995)
ⓘ TorSoong mine	Econ Geol (1995)

Turkey
Ankara Province Altındağ District ⓘ Gicik Au-Ag ± Te deposit	Çil et al. (2026)
Balikesir Province Bigadiç District ⓘ Tumanpınarı deposit	Gultekin et al. (2016)
Çanakkale Province Ayvacık District ⓘ Tuzla geothermal field	Kiray et al. (2025)
Çan District ⓘ Hamamtepe silica site	Ercan et al. (2022)
Gaziantep Province Şehitkamil District ⓘ Ortaklar deposit	Yıldırım et al. (2016)

Uganda
Central Region Wakiso Busiro Co. (Bushiro Co.) ⓘ Wampewo Hill	von Knorring et al. (1979)
ⓘ Nampeyo	Uganda Geological Survey Bull. 4
Western Region Kanungu ⓘ Bulema Mine	Gallagher (1967)

UK
England Devon West Devon Okehampton Hamlets ⓘ Meldon Aplite Quarry	Knorring et al. (1984) +1 other reference
ⓘ Meldon Quarry	Day (1999)

Ukraine
Zaporizhia Oblast Berdyansk Raion Middle Berda River Rodionovskoe pegmatite field ⓘ Krutaya Balka pegmatite	Shatalov (2017)

USA
Alabama Coosa County Rockford Mining District ⓘ McCallister pegmatite	[Uranmicrolite (of Hogarth 1977)] - (1989)
Arizona Mohave County ⓘ Blue Bird prospect (Bountiful Beryl prospect)	Schaller et al. (1962)
Yavapai County White Picacho Mining District Independence Gulch ⓘ Midnight Owl Mine	Jahns (1952) +1 other reference
ⓘ Picacho View Mine	Jahns (1952) +1 other reference
San Domingo Wash ⓘ Outpost Mine	Jahns (1952) +2 other references
California Riverside County Cahuilla Mining District Little Cahuilla Mountain ⓘ Fano Mine (Big Pink claim; Fano-Simmons Mine; Little Blue claim; MS 4800; Simmons Mine)	Cal Div of Mines & Geo Bulletin 189 " ...
Jurupa Valley Jurupa Mountains ⓘ Jensen Quarry	DeVito et al. (1984)
San Diego County Mesa Grande Mining District Gem Hill ⓘ Himalaya Mine	[var: Stannomicrolite (of Hogarth 1977), Uranmicrolite (of Hogarth 1977)] Fisher (2002)
ⓘ San Diego Mine	Foord et al. (1978)
ⓘ Pala Mining District	Jahns et al. (1951)
Pala Tourmaline Queen Mountain (Pala Mtn; Queen Mtn) ⓘ Stewart Mine	Jahns et al. (1951)
ⓘ Tourmaline King Mine	Jahns et al. (1951) +3 other references
ⓘ Tourmaline Queen Mine	San Diego Mining Company
Ramona Mining District Ramona Little Three Mine area ⓘ Little Three Mine	[Uranmicrolite (of Hogarth 1977)] Foord et al. (1989)
Warner Springs Mining District Chihuahua Valley ⓘ Carmelita Mine (Big Spring mine; Blue Gem claim; Crest Gem mine; Elinor deposit; Elinor mine; Estudillo mine; French Pete mine; MS 6130; Peter Cabat mine)	San Diego Mining Company
Warner Springs ⓘ Cryo-Genie Mine	[Fluornatromicrolite] Timothy Sherburn collection
Colorado Chaffee County Mount Antero ⓘ Beryl Gem Claims	- (2005)
Clear Creek County Bald Mountain Upper Bear Creek ⓘ Bald Mountain pegmatite (Evans Ranch)	Eckel et al. (1997)
ⓘ Grover Mine (Grover pegmatite; Windsor)	Eckel et al. (1997)
El Paso County Cheyenne Mining District (St. Peters Dome Mining District) ⓘ St Peters Dome	Eckel et al. (1997)
ⓘ Mount Rosa	Eckel et al. (1997)
Pikes Peak ⓘ Sentinel rock (Specimen rock)	Eckel et al. (1997)
Fremont County ⓘ Eight Mile Park Pegmatite Mining District	Eckel et al. (1997)
Texas Creek Area ⓘ Chief lithium pegmatite	Eckel et al. (1997)
Gunnison County ⓘ Little Katherine Mine (Bazooka Mine)	Meeves et al. (1966)
Quartz Creek Mining District ⓘ J. B. W. claim	Eckel et al. (1997)
Quartz Creek Pegmatite Mining District ⓘ Bazooka	Hanley et al. (1950) +1 other reference
ⓘ Brown Derby Mine	Rocks & Min.: 24:233-234. +5 other references
ⓘ Brown Derby No. 1	USGS Proffesional Paper 265 +1 other reference
ⓘ Brown Derby No. 5 Mine	USGS Proffesional Paper 265 +3 other references
ⓘ Opportunity Mine	USGS Proffesional Paper 265 +3 other references
ⓘ White Spar No. 1 Mine	USGS Proffesional Paper 265 +2 other references
ⓘ White Spar No. 2 Mine	USGS Proffesional Paper 265 +1 other reference
Jefferson County Clear Creek pegmatite Province ⓘ Burroughs Mine (Traut-Rudin-Anderson Pegmatite; Sunrise Peak Mine)	Meeves et al. (1966)
ⓘ East Shaffer Hill pegmatite	Meeves et al. (1966)
ⓘ Old Soda Creek School Pegmatite	- (2005)
ⓘ Silver Glen Ranch Mine	- (2005)
ⓘ Soda Creek School Mine (Soda Creek School pegmatite)	Meeves et al. (1966)
ⓘ Swede - Kerr Gulches Pegmatites	Eckel et al. (1997)
South Platte Pegmatite Mining District ⓘ White Cloud pegmatite	Meeves et al. (1966)
ⓘ Swede Gulch pegmatite	Eckel et al. (1997)
Teller County ⓘ Black Cloud Mine	Meeves et al. (1966)
Connecticut Fairfield County Redding Branchville ⓘ Fillow Quarry	Januzzi (1994)
Hartford County Glastonbury East Glastonbury ⓘ Brack Gem prospect (Brack prospect)	Rocks & Min.: 70:398
South Glastonbury ⓘ Chamberlain Lane	Moritz (n.d.)
ⓘ Hollister prospects	Schooner (1958) +1 other reference
ⓘ Howe Quarry (Howe #1 Quarry; Huspband Quarry) ?	Betts (1999)
ⓘ Simpson prospect #1	[Uranmicrolite (of Hogarth 1977)] Tony Albini Collection
ⓘ Simpson Quarry (Wiarda Quarry)	[Uranmicrolite (of Hogarth 1977)] Weber et al. (1995) +1 other reference
Litchfield County Watertown ⓘ State Route 8 unspecified roadcut [1]	[Uranmicrolite (of Hogarth 1977)] Bill Barret Coll. Specimen
Middlesex County East Hampton ⓘ Anderson No. 1 Mica Mine	Ralph Lieser of Pappy’s Beryl Shop +2 other references
ⓘ Becker Quarry	Schooner (1958, 1961) +1 other reference
ⓘ Slocum prospect	[Uranmicrolite (of Hogarth 1977)] Schooner (1958 and 1961)
Haddam ⓘ Chrysoberyl locality	Shepard (1870)
Haddam Neck ⓘ Gillette Quarry (J-J Mine; Haddam Neck Quarry)	Bowman (1902) +3 other references
ⓘ Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry)	Seaman (1976)
ⓘ Long Hill prospects (Turkey Hill prospects)	Moritz (n.d.)
Middletown White Rock Mining District ⓘ Riverside Quarry (Western Quarry)	Moritz (n.d.)
ⓘ White Rocks Quarry (Consolidated Quarry)	Moritz (n.d.) +2 other references
Portland Collins Hill ⓘ Hale-Walker prospects ?	Januzzi et al. (1976)
Strickland pegmatite ⓘ Strickland Quarry	Ralph Lieser of Pappy’s Beryl Shop +4 other references
ⓘ Hale Quarry (Andrews Quarry; Glastonbury Quarry)	King (n.d.)
ⓘ Walden Gem Quarry	Rocks & Min.: 70:403 +2 other references
Maine Androscoggin County Auburn East Mount Apatite Mining District ⓘ Greenlaw Quarry
ⓘ Maine Feldspar Quarry
West Mount Apatite Mining District ⓘ Pulsifer Quarry & Dionne extension
Poland ⓘ Berry-Havey Quarry	King et al. (1994) +1 other reference
Cumberland County Brunswick ⓘ LaChance Quarry	Thompson et al. (1998)
Franklin County D Township ⓘ Bemis Stream prospect	W. B. Thompson et al. (2005)
Oxford County Buckfield ⓘ Bennett Quarry	[Fluornatromicrolite] King (2000)
Greenwood ⓘ ~~Noyes Mountain Quarry (Harvard Quarry)~~	King et al. (1994)
Newry ⓘ Dunton Gem Quarry	King et al. (1994) +1 other reference
ⓘ Nevel Quarry	King et al. (1994) +1 other reference
ⓘ Rose Quartz crystal locality (Pegmatite 24)	King et al. (1994) +1 other reference
Paris ⓘ Mount Marie Quarries
ⓘ Mount Mica Quarry	[Fluorcalciomicrolite] King et al. (1994) +1 other reference
Rumford ⓘ Black Mountain Quarry	[Fluorcalciomicrolite]
Stoneham ⓘ ~~Lord Hill Quarry (Lord Hill Mine)~~	King et al. (1994)
Sagadahoc County Topsham ⓘ Fisher Quarry	[Hydroxycalciomicrolite] Clara Brennan et al. (2016)
Maryland Montgomery County Wheaton ⓘ Kensington Mica Mine (Gilmore Mine; B. H. Warner Mine) ?	Bernstein (1980)
Massachusetts Hampden County Blandford ⓘ Blandford mica mines ?	"Western Massachusetts Mineral ...
Hampshire County Chesterfield ⓘ Clark Ledge pegmatite locality (FRL)	Shepard
Michigan Dickinson County Randville ⓘ Unnamed Pegmatite quarry ("Groveland" pegmatite)	Buchholz et al. (2014)
Marquette County Humboldt Township ⓘ Black River pegmatite	Buchholz et al. (2013)
Nevada Humboldt County Battle Mountain Mining District ⓘ Marigold mine	Huff et al. (2025)
Mineral County Fitting Mining District Gillis Range ⓘ Zapot Pegmatite	Foord et al. (1999)
New Hampshire Carroll County Albany ⓘ Government pit	Rocks&Min. 67:158-168
Grafton County Bethlehem ⓘ North Sugarloaf Mountain locality	Rocks & Minerals Vol.65 No.4
Groton ⓘ Charles Davis Mine ?	Wilken
New Mexico Lincoln County Capitan Mountains Capitan Mining District ⓘ Mina Tiro Estrella	Wilson et al. (1977)
Mora County ⓘ Pidlite deposit	Northrop et al. (1996) +1 other reference
Rio Arriba County ⓘ Petaca Mining District	Michael N. Spilde et al. (2011) +1 other reference
Cribbenville area ⓘ Nambe deposit	Jahns (1946)
ⓘ Rociada Mining District	Northrop et al. (1996)
Taos County Picuris District ⓘ Harding Mine	[Fluorcalciomicrolite] Richard Jahns +1 other reference
ⓘ New York	Manchester (1931)
ⓘ New York City	John H. Betts (2009)
North Carolina Mitchell County ⓘ McHone Mine pegmatite	Wise et al. (2009) +1 other reference
Spruce Pine ⓘ Crabtree Mine	Tappen et al. (2006)
Greasy Creek Township ⓘ Wiseman Mine (Old Mart Wiseman Mine; Sullins-Wiseman Mine)	[Uranmicrolite (of Hogarth 1977)] Rocks and Minerals +1 other reference
ⓘ McKinney Mine (Power Mill Creek Mine)	[Uranmicrolite (of Hogarth 1977)] Warner et al. (2009)
Yancey County Burnsville Hurricane Mountain ⓘ Ray Mica Mine	"Mineralogy and History of the Ray Mica ...
Pennsylvania Delaware County Middletown Township Elwyn Mineral Hill ⓘ Crump's Quarry	Gordon (1922)
ⓘ Feldspar Quarry	Gordon (1922)
South Dakota Custer County Custer Mining District Custer ⓘ Shamrock No. 1 Lode Mine	- (2005)
Fourmile ⓘ Tin Mountain Mine	Rocks & Minerals: 60: 117-118. +5 other references
Pennington County Harney City ⓘ Wood Tin mine	Smith et al. (2000)
Keystone Mining District Keystone ⓘ Bob Ingersoll Mine	Rocks & Min.:10:147 & 60:112 +1 other reference
ⓘ Peerless Mine	Černý et al. (1985)
ⓘ White Cap Mine	Meeves et al. (1966)
Texas Burnet County ⓘ Cactus Jack pegmatite	Self-collected by Franklin Roberts.
Virginia Amelia County ⓘ Amelia (Amelia Court House)	[Fluorcalciomicrolite] Palache et al. (1940)
ⓘ Champion Mine (Jefferson No. 4 Mine; Bland Mine)	Am Min 50:231-235 +1 other reference
ⓘ Rutherford Mines	[Fluorcalciomicrolite, Hydroxycalciomicrolite, Kenoplumbomicrolite, Oxycalciomicrolite, Oxystannomicrolite] Rocks & Min.: 60: 165. +4 other references
ⓘ Chula	James Madison University museum ...
Winterham ⓘ Morefield Mine (Morefield pegmatite)	Richards et al. (1998) +1 other reference
Powhatan County Flat Rock ⓘ Herbb No. 2 Mine	Dietrich (1990)
Prince Edward County Darlington Heights ⓘ State Road 665 Roadcut	Dietrich (1990)
Spotsylvania County Brokenburg ⓘ Edenton Mine	Dietrich (1990)
Wisconsin Dodge County ⓘ Waterloo quarry (Michels Materials Waterloo quarry; Portland Quarry)	[Uranmicrolite (of Hogarth 1977)] Buchholz et al. (2007) +1 other reference
Florence County Fern ⓘ Pine River pegmatites	Alexander Falster et al. (2018)
ⓘ Animikie Red Ace pegmatite	Falster et al. (1996)
Marathon County ⓘ Wausau Intrusive Complex	Falster (1981) +1 other reference
ⓘ "Rotten granite" quarries	Falster (1987)
Nine Mile pluton ⓘ Charneski pit (Ladick East pit)	Buchholz et al. (2002)
ⓘ Koss pit	www.uwrf.edu/~wc01

Zambia
Copperbelt Province Lufwanyama District ⓘ Kafubu emerald mining district	Wilson et al. (2010)

Zimbabwe
Harare Enterprise tin field ⓘ Patronage claim	Southern Rhodesia Geological Survey (1959)
ⓘ Pope tantalum mine	Southern Rhodesia Geological Survey (1959)
ⓘ Unnamed greisen locality	- (2011)
Manicaland ⓘ Chimanimani District	Gallagher (1967)
Mashonaland Central Mazowe District ⓘ Mistress Mine	Ackermann et al. (1968) +1 other reference
ⓘ Thorny Mine	Chester S. Lemanski
Mashonaland East Goromonzi District ⓘ Pope claims	Anonymous (1995)
Mudzi District ⓘ Benson Mine	Hornung. G. PhD thesis. Pegmatites of ...
ⓘ Benson No. 1 pegmatite	Ackermann et al. (1968)
ⓘ Benson No. 2 pegmatite	Ackermann et al. (1968)
ⓘ Benson No. 3 pegmatite	von Knorring et al. (1963) +1 other reference
ⓘ Benson No. 4 pegmatite	Ackermann et al. (1968)
ⓘ Donsa pegmatite	Gallagher (1967)
ⓘ UMP District (Uzumba-Maramba-Pfungwe District)	Lumpkin et al. (1992)
Masvingo Bikita District ⓘ Al Hayat claim	McGregor (1946)
ⓘ Bikita pegmatite	Tyndale-Biscoe (1951) +1 other reference

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Microlite Group

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