Originally named sukulaite in 1967 for the Sukula Pegmatites, Finland, the type locality. It was renamed to stannomicrolite during a classification and nomenclature update of the pyrochlore group in 1977 (Hogarth 1977). It was renamed again, to oxystannomicrolite, according to new recommended pyrochlore supergroup nomenclature (Atencio et al. 2010), indicating dominant elements and its relation to other microlite group minerals.

Type Locality:

ⓘ Sukula Pegmatites, Tammela, Kanta-Häme, Finland

Chemically similar to thoreaulite.

Unique IdentifiersHide

Mindat ID:

40356

Long-form identifier:

mindat:1:1:40356:8

IMA Classification of OxystannomicroliteHide

IMA status:

Approved

IMA status notes:

Redefined by the IMA

IMA Formula:

Sn²⁺₂Ta⁵⁺₂O₆O

Approval year:

2010

Type description reference:

Vorma, A. and Siivola, J. (1967) Sukulaite - Ta2Sn2O7 - and wodginite as inclusions in cassiterite in the granite pegmatite in Sukula, Tammela in SW Finland. Bulletin de la Commission géologique de Finlande: 229: 173-187.

Classification of OxystannomicroliteHide

Strunz-mindat (2026):

4.DH.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra

Mineral SymbolsHide

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

Symbol	Source	Reference for Standard
Omic	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of OxystannomicroliteHide

Pronunciation:

Play	Recorded by	Country
	Jolyon Ralph	United Kingdom

Physical Properties of OxystannomicroliteHide

Transparency:

Translucent

Colour:

Yellowish brown

Hardness:

7 on Mohs scale

Tenacity:

Brittle

Fracture:

Irregular/Uneven

Density:

8.34 g/cm³ (Measured) 8.21 g/cm³ (Calculated)

Optical Data of OxystannomicroliteHide

Type:

Isotropic

Colour in reflected light:

light gray with a reddish or lilac tint

Internal Reflections:

reddish brown

Chemistry of OxystannomicroliteHide

Mindat Formula:

Sn₂Ta₂O₆O

Element Weights:

Element	% weight
Ta	50.877 %
Sn	33.378 %
O	15.745 %

Calculated from ideal end-member formula.

Elements listed:

O, Sn, Ta - search for minerals with similar chemistry

Crystallography of OxystannomicroliteHide

Crystal System:

Isometric

Class (H-M):

m3m(4/m32/m) - Hexoctahedral

Space Group:

Fd3m

Setting:

Fd3m

Cell Parameters:

a = 10.57 Å

Unit Cell V:

1,180.93 Å³ (Calculated from Unit Cell)

Morphology:

As rims, to 20 μm, surrounding ferrowodginite crystals

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	Link	Year	Locality	Pressure (GPa)	Temp (K)
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		0	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		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Oxystannomicrolite'
loop_
_publ_author_name
'Gasperin M'
_journal_name_full 'Bulletin de la Societe Francaise de Mineralogie et de Cristallographie'
_journal_volume 83 
_journal_year 1960
_journal_page_first 1
_journal_page_last 21
_publ_section_title
;
 Contribution a l'etude de quelques oxydes doubles que forme le tantale
 avec l'etain, l'uranium et le calcium.
 _cod_database_code 1001840
;
_database_code_amcsd 0012114
_chemical_formula_sum 'Ta2 Sn2 O7'
_cell_length_a 10.470
_cell_length_b 10.470
_cell_length_c 10.470
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1147.731
_exptl_crystal_density_diffrn      8.233
_symmetry_space_group_name_H-M 'F d 3 m'
loop_
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  '1/4+z,3/4-x,3/4+y'
  '1/4+z,1/4-x,1/4+y'
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  '1/4-z,3/4+y,3/4+x'
  '1/4-z,1/4+y,1/4+x'
  '1/2+y,-x,1/2-z'
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  '1/4-x,3/4+z,3/4+y'
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  '1/4-y,3/4+x,3/4+z'
  '1/4-y,1/4+x,1/4+z'
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  '1/2+x,+z,1/2+y'
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  '3/4-z,1/4-y,3/4-x'
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  'y,+x,+z'
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  '3/4-x,3/4-z,1/4-y'
  '3/4-x,1/4-z,3/4-y'
  'z,1/2+y,1/2+x'
  'z,+y,+x'
  '1/2+z,1/2+y,+x'
  '1/2+z,+y,1/2+x'
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  '1/4-y,1/4-x,1/4-z'
  '3/4-y,3/4-x,1/4-z'
  '3/4-y,1/4-x,3/4-z'
  '3/4+z,1/4+x,3/4-y'
  '3/4+z,3/4+x,1/4-y'
  '1/4+z,1/4+x,1/4-y'
  '1/4+z,3/4+x,3/4-y'
  '-y,1/2-z,1/2+x'
  '-y,-z,+x'
  '1/2-y,1/2-z,+x'
  '1/2-y,-z,1/2+x'
  '3/4+x,1/4+y,3/4-z'
  '3/4+x,3/4+y,1/4-z'
  '1/4+x,1/4+y,1/4-z'
  '1/4+x,3/4+y,3/4-z'
  '-z,1/2-x,1/2+y'
  '-z,-x,+y'
  '1/2-z,1/2-x,+y'
  '1/2-z,-x,1/2+y'
  '3/4+y,1/4+z,3/4-x'
  '3/4+y,3/4+z,1/4-x'
  '1/4+y,1/4+z,1/4-x'
  '1/4+y,3/4+z,3/4-x'
  '-x,1/2-y,1/2+z'
  '-x,-y,+z'
  '1/2-x,1/2-y,+z'
  '1/2-x,-y,1/2+z'
  '1/4-z,3/4+x,3/4+y'
  '1/4-z,1/4+x,1/4+y'
  '3/4-z,3/4+x,1/4+y'
  '3/4-z,1/4+x,3/4+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'
  '1/4-x,3/4+y,3/4+z'
  '1/4-x,1/4+y,1/4+z'
  '3/4-x,3/4+y,1/4+z'
  '3/4-x,1/4+y,3/4+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'
  '1/4-y,3/4+z,3/4+x'
  '1/4-y,1/4+z,1/4+x'
  '3/4-y,3/4+z,1/4+x'
  '3/4-y,1/4+z,3/4+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'
  '1/2-x,1/2+z,-y'
  '1/2-x,+z,1/2-y'
  '-x,1/2+z,1/2-y'
  '-x,+z,-y'
  '1/4+z,3/4-y,3/4+x'
  '1/4+z,1/4-y,1/4+x'
  '3/4+z,3/4-y,1/4+x'
  '3/4+z,1/4-y,3/4+x'
  '1/2-y,1/2+x,-z'
  '1/2-y,+x,1/2-z'
  '-y,1/2+x,1/2-z'
  '-y,+x,-z'
  '1/4+x,3/4-z,3/4+y'
  '1/4+x,1/4-z,1/4+y'
  '3/4+x,3/4-z,1/4+y'
  '3/4+x,1/4-z,3/4+y'
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  '1/2-z,+y,1/2-x'
  '-z,1/2+y,1/2-x'
  '-z,+y,-x'
  '1/4+y,3/4-x,3/4+z'
  '1/4+y,1/4-x,1/4+z'
  '3/4+y,3/4-x,1/4+z'
  '3/4+y,1/4-x,3/4+z'
  '-x,-z,y'
  '-x,1/2-z,1/2+y'
  '1/2-x,-z,1/2+y'
  '1/2-x,1/2-z,y'
  '3/4+z,3/4+y,1/4-x'
  '3/4+z,1/4+y,3/4-x'
  '1/4+z,3/4+y,3/4-x'
  '1/4+z,1/4+y,1/4-x'
  '-y,-x,z'
  '-y,1/2-x,1/2+z'
  '1/2-y,-x,1/2+z'
  '1/2-y,1/2-x,z'
  '3/4+x,3/4+z,1/4-y'
  '3/4+x,1/4+z,3/4-y'
  '1/4+x,3/4+z,3/4-y'
  '1/4+x,1/4+z,1/4-y'
  '-z,-y,x'
  '-z,1/2-y,1/2+x'
  '1/2-z,-y,1/2+x'
  '1/2-z,1/2-y,x'
  '3/4+y,3/4+x,1/4-z'
  '3/4+y,1/4+x,3/4-z'
  '1/4+y,3/4+x,3/4-z'
  '1/4+y,1/4+x,1/4-z'
  '1/4-z,1/4-x,1/4-y'
  '1/4-z,3/4-x,3/4-y'
  '3/4-z,1/4-x,3/4-y'
  '3/4-z,3/4-x,1/4-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'
  '1/4-x,1/4-y,1/4-z'
  '1/4-x,3/4-y,3/4-z'
  '3/4-x,1/4-y,3/4-z'
  '3/4-x,3/4-y,1/4-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'
  '1/4-y,1/4-z,1/4-x'
  '1/4-y,3/4-z,3/4-x'
  '3/4-y,1/4-z,3/4-x'
  '3/4-y,3/4-z,1/4-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ta   0.12500   0.12500   0.12500
Sn   0.62500   0.62500   0.62500
O1   0.50000   0.50000   0.50000
O2   0.20000   0.00000   0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.046 Å	(vs)
1.866 Å	(s)
1.589 Å	(s)
2.640 Å	(ms)
1.524 Å	(m)
1.2105 Å	(m)
1.1796 Å	(m)

Locality:

Sukula Pegmatites, Tammela, Kanta-Häme, Finland

Reference:

Geological EnvironmentHide

Paragenetic Mode(s):

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

Type Occurrence of OxystannomicroliteHide

Type Locality:

ⓘ Sukula Pegmatites, Tammela, Kanta-Häme, Finland

General Appearance of Type Material:

Narrow rims around ferrowodginite , and in small grains replacing ferrowodginite almost completely.

Place of Conservation of Type Material:

Not described.

Geological Setting of Type Material:

Granite pegmatite.

Associated Minerals at Type Locality:

Cassiterite

Ferrowodginite

Native Bismuth

Reference:

Synonyms of OxystannomicroliteHide

Sukulaite

Other Language Names for OxystannomicroliteHide

Dutch:Oxystannomicroliet

German:Oxystannomikrolith

Relationship of Oxystannomicrolite to other SpeciesHide

Member of:

Microlite Group > Pyrochlore Supergroup

Other Members of Microlite Group:

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
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

Related Minerals - Strunz-mindat Grouping Hide

4.DH.	Cesiokenopyrochlore	◻Nb₂(O,OH)₆(Cs,◻)	Iso. m3m(4/m32/m) : Fd3m
4.DH.	Roméite Group	A₂(Sb⁵⁺)₂O₆Z
4.DH.	Oxyplumboroméite	Pb₂Sb₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.	Fluornatropyrochlore	(Na,Pb,Ca,REE,U)₂Nb₂O₆F	Iso. m3m(4/m32/m)
4.DH.	Hydroxykenomicrolite	(◻,Na,Sb³⁺)₂Ta₂O₆(OH,Cs)	Iso. m3m(4/m32/m) : Fd3m
4.DH.	'Fluornatroroméite'	(Na,Ca)₂Sb₂(O,OH)₆F
4.DH.	Oxyyttrobetafite-(Y)	Y₂Ti₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.05	Thorutite	(Th,U,Ca)Ti₂(O,OH)₆	Mon.
4.DH.05	Orthobrannerite	U⁴⁺U⁶⁺Ti₄O₁₂(OH)₂	Orth.
4.DH.05	Brannerite	UTi₂O₆	Mon. 2/m : B2/m
4.DH.10	Kassite	CaTi₂O₄(OH)₂	Mon. 2/m : P2₁/b
4.DH.10	Lucasite-(La)		Mon. 2 : B2
4.DH.10	Lucasite-(Ce)	CeTi₂(O,OH)₆	Mon.
4.DH.15	'Fluorhydropyrochlore'
4.DH.15	Hydrokenoelsmoreite	◻₂W₂O₆(H₂O)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Hydroxynatromicrolite'	(Na,Bi³⁺,◻)₂Ta₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Hydroplumboelsmoreite	(Pb,◻)(W,Fe³⁺)₂O₆ · H₂O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Hydropyrochlore	(H₂O,◻)₂Nb₂(O,OH)₆(H₂O)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Unnamed (Sb-analogue of Hydroxymanganopyrochlor)'	(Mn,Ca,Y)₂(Sb,Ti)₂O₆(OH)
4.DH.15	Hydroxynatropyrochlore	(Na,Ca,Ce)₂Nb₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Hydrokenopyrochlore	(◻,x)₂Nb₂O₆(H₂O,Cs)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Oxybismutomicrolite	(Bi_1.33◻_0.67)_Σ2Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Kenomicrolite	◻₂Ta₂[O₄(OH)₂]◻	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Fluornatromicrolite	(Na_1.5Bi_0.5)Ta₂O₆F	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Oxynatropyrochlore'	(Na,Ca,U)₂Nb₂O₆(O,OH)
4.DH.15	Hydroxycalciopyrochlore	(Ca,Na,U,◻)₂(Nb,Ti)₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Fluorcalciopyrochlore	(Ca,Na)₂(Nb,Ti)₂O₆F	Iso.
4.DH.15	Oxycalciopyrochlore	Ca₂Nb₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Fluorstrontiopyrochlore'	(Sr,◻)₂Nb₂(O,OH)₆F
4.DH.15	Oxyplumbopyrochlore	Pb₂Nb₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Fluorplumbopyrochlore'	(Pb,Y,Th,U,Na,Ca)_2-x(Nb,Ti)₂O₆F	Iso.
4.DH.15	'Bismutomicrolite (of Hogarth 1977)'		Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Bismutopyrochlore (of Chukanov et al.)'	(Bi,Ca,U,Pb)_2-xNb₂(O,OH)₆(OH)	Amor.
4.DH.15	'Kenoplumbopyrochlore'	(Pb,◻)Nb₂O₆(◻,O)
4.DH.15	Hydroxyplumbopyrochlore	(Pb_1.5◻_0.5)Nb₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Stibiomicrolite (of Groat et al.)'
4.DH.15	'Oxyyttropyrochlore-(Y)'	(Y,◻)₂Nb₂O₆O
4.DH.15	'Fluorkenopyrochlore'	(◻,Sr,Ce,Ca,Na)₂(Nb,Ti)₂O₆F
4.DH.15	Hydroxycalciomicrolite	Ca_1.5Ta₂O₆(OH)	Iso. 432 : P4₂32
4.DH.15	'Strontiopyrochlore (of Hogarth 1977)'	(Sr,Ce,Ca)_0.66(Nb,Fe)₂(O,OH)₇
4.DH.15 va	'Alumotungstite'	◻₂W₂O₆(H₂O)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Oxycalciobetafite'	Ca₂(Ti,Nb)₂O₆O
4.DH.15	'Oxyuranobetafite'	(U,Ca,◻)₂(Ti,Nb)₂O₆O
4.DH.15	Fluorcalciomicrolite	(Ca,Na)₂(Ta,Nb)₂O₆F	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Oxycalciomicrolite	Ca₂Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Kenoplumbomicrolite	(Pb,◻)₂Ta₂O₆(◻,OH,O)	Iso.
4.DH.15	Oxynatromicrolite	(Na,Ca,U)₂(Ta,Nb)₂O₆(O,F)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Oxystibiomicrolite	(Sb³⁺,Ca)₂Ta₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	'Hydromicrolite'	(H₂O,◻)₂Ta₂(O,OH)₆(H₂O)
4.DH.15	'Plumbomicrolite (of Hogarth 1977)'
4.DH.15	Hydrokenomicrolite	(◻,H₂O)₂Ta₂(O,OH)₆(H₂O)	Iso. m3m(4/m32/m)
4.DH.15	Hydroxykenoelsmoreite	(◻,Pb)₂(W,Fe³⁺,Al)₂(O,OH)₆(OH)	Trig. 3 : R3
4.DH.15 va	'Yttromicrolite (of Hogarth)'	(Ca,Y³⁺,U,Na)_2-x(Ta,Nb,Ti,Fe³⁺)₂O₇	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Hydroxykenopyrochlore	(◻,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F)	Iso. m3m(4/m32/m) : Fd3m
4.DH.15	Hydroxymanganopyrochlore	(Mn²⁺,Th,Na,Ca,REE)₂(Nb,Ti)₂O₆(OH)	Iso. m3(2/m3)
4.DH.20	'Cuproroméite'	Cu₂Sb₂(O,OH)₇	Iso.
4.DH.20	Hydroxycalcioroméite	(Ca,Sb³⁺)₂(Sb⁵⁺,Ti)₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.20	Bindheimite	Pb₂Sb₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.20	Hydroxyferroroméite	(Fe²⁺_1.5◻_0.5)Sb⁵⁺₂O₆(OH)	Iso. m3m(4/m32/m) : Fd3m
4.DH.20	Fluorcalcioroméite	(Ca,Na,◻)₂Sb⁵⁺₂(O,OH)₆F	Iso. m3m(4/m32/m) : Fd3m
4.DH.20	Oxycalcioroméite	Ca₂Sb₂O₆O	Iso. m3m(4/m32/m) : Fd3m
4.DH.20	Stetefeldtite	Ag₂Sb₂(O,OH)₇	Iso.
4.DH.20	Stibiconite	Sb³⁺Sb⁵⁺₂O₆(OH)	Iso. m3m(4/m32/m)
4.DH.20	Monimolite	Pb₂Sb⁵⁺₂O₇	Iso. m3m(4/m32/m)
4.DH.25	Rosiaite	PbSb⁵⁺₂O₆	Trig. 3m(32/m) : P31m
4.DH.30	Stefanweissite	(Ca,REE)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄	Orth. mmm(2/m2/m2/m) : Cmca
4.DH.30	Zirconolite	CaZrTi₂O₇	Orth.
4.DH.30	Laachite	(Ca,Mn)₂Zr₂Nb₂TiFeO₁₄	Mon. 2/m : B2/b
4.DH.30	Nöggerathite-(Ce)	(Ce,Ca)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄	Orth. mmm(2/m2/m2/m) : Cmca
4.DH.35	Liandratite	U(Nb,Ta)₂O₈	Trig. 3m(32/m) : P31m
4.DH.35	Petscheckite	UFe(Nb,Ta)₂O₈	Hex.
4.DH.40	Ingersonite	Ca₃Mn²⁺Sb⁵⁺₄O₁₄	Trig. 32 : P3₁21
4.DH.45	Pittongite	Na_0.22(W,Fe³⁺)(O,OH)₃ · 0.44H₂O	Hex. 6m2 : P6m2
4.DH.50	Tazzoliite	Ba_4-xNa_xTi₂Nb₃SiO₁₇[PO₂(OH)₂]_x(OH)_(1-2x)	Orth. mmm(2/m2/m2/m) : Fmmm

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References for OxystannomicroliteHide

Reference List:

Gasperin, Madeleine (1960) Contribution à l'étude de quelques oxydes doubles que forme le tantale avec l'étain, l'uranium et le calcium. Application à la cassitérite et à la bétafite. Bulletin de Minéralogie, 83 (1) 1-21 doi:10.3406/bulmi.1960.5369

Fleisher, Michael (1968) New Mineral Names. American Mineralogist, 53 (11-12) 2103-2106

Birchall, T.; Sleight, A.W. (1975) Nonstoichiometric phases in the Sn-Nb-O and Sn-Ta-O systems having pyrochlore-related structures. Journal of Solid State Chemistry, 13 (1-2). 118-130 doi:10.1016/0022-4596(75)90089-4

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

Ercit, T.S., Cerny, P., and Siivola, J. (1987) The composition of stannomicrolite. Neues Jahrbuch für Mineralogie, Monatshefte 1987 (6): 249-252.

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

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

(2020) Oxystannomicrolite. Handbook of Mineralogy. Mineralogical Society of America

Localities for OxystannomicroliteHide

Showing 2 localities.

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Locality ListHide

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- 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.


Finland (TL)
Kanta-Häme Tammela ⓘ Sukula Pegmatites (TL)	Vorma et al. (1967) +1 other reference

USA
Virginia Amelia County Amelia (Amelia Court House) ⓘ Rutherford Mines	Duresky et al. (2025)

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Oxystannomicrolite

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