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Halloysite

A valid IMA mineral species
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02046730017271923574402.jpg
Halloysite

Barranco Celejo, Pozo de Los Frailes, Níjar, Almería, Andalusia, Spain
06017410017271923594208.jpg
Halloysite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
05710670017467768983485.jpg
Halloysite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
02046730017271923574402.jpg
Halloysite

Barranco Celejo, Pozo de Los Frailes, Níjar, Almería, Andalusia, Spain
06017410017271923594208.jpg
Halloysite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
06108850017372688719634.jpg
Halloysite, etc.

Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
00920240017271923684728.jpg
Halloysite

Barranco Celejo, Pozo de Los Frailes, Níjar, Almería, Andalusia, Spain
06017410017271923594208.jpg
Halloysite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
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About HalloysiteHide

03330440017271923721205.jpg
Jean-Baptiste-Julien d'Omalius d'Halloy (1783-1875)
Formula:
Al2Si2O5(OH)4 · n(H2O)
Colour:
White to tan, sometimes greenish or bluish, also chocolate brown to reddish.
Lustre:
Waxy, Earthy
Hardness:
1 - 2
Specific Gravity:
2 - 2.65
Crystal System:
Monoclinic
Name:
Originally named halloysite by French geologist and mining engineer Pierre Berthier in 1826 after the Belgian geologist Jean-Baptiste Julien d'Omalius d'Halloy (16 February 1783, Liège, Belgium - 15 January 1875, Brussels, Belgium), who discovered the mineral. He was a nobleman, a statesman, and a pioneer of modern geology in Belgium. He was the geologist who first defined and named the Cretaceous period (after chalk strata in the Paris basin).

After the discovery that some of this material was a more hydrated species, with a greater interlayer spacing (later called halloysite-10Å and currently hydrohalloysite), the name metahalloysite was sometimes used for this species (Alexander et al. 1943, Faust 1955). The name was changed by the IMA to halloysite-7Å in 1980 (Bailey, 1980), where the suffix refers to the 7-Ångström layer thickness that is identified in XRD patterns. The species name was reverted to halloysite, without the suffix, in 2022.
Polymorph of:
Dickite, Kaolinite, Nacrite
Typically found as earthy to somewhat waxy-looking, extremely fine-grained clayey masses, white to tan and also occasionally bluish or greenish.

Also known as halloysite-7Å and metahalloysite, it is dehydrated hydrohalloysite (halloysite-10Å) and is characterised by a reduced interlayer spacing.

de Ligny and Navrotsky (1999) showed that kaolinite is the thermodynamically stable phase and the polymorphs dickite, halloysite and nacrite are metastable phases mainly crystallising due to kinetic reasons.

Originally reported from Angleur, Liège, Liège Province, Belgium.

Also reported as a biomineral formed by the action of lichen (e.g., Lasallia spp., Mucor spp., etc.) on cave deposits and waters (Burford et al., 2003).


Unique IdentifiersHide

Mindat ID:
1808
Long-form identifier:
mindat:1:1:1808:7

Similar NamesHide

IMA Classification of HalloysiteHide

IMA status:
Approved
IMA status notes:
Redefined by the IMA
IMA Formula:
Si2Al2O5(OH)4·nH2O
Approval history:
IMA 25-E – halloysite (redefinition)

Classification of HalloysiteHide

Strunz-mindat (2026):
9.ED.10

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
Dana 7th ed.:
71.1.1.4
Dana 8th ed.:
71.1.1.4

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
Hey's CIM Ref.:
15.10

15 : Silicates of Aluminum

Mineral SymbolsHide

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

SymbolSourceReference for Standard
Hly-7ÅIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of HalloysiteHide

Lustre:
Waxy, Earthy
Transparency:
Translucent, Opaque
Colour:
White to tan, sometimes greenish or bluish, also chocolate brown to reddish.
Streak:
Paler than the color, or white.
Hardness:
1 - 2 on Mohs scale
Fracture:
Sub-Conchoidal
Density:
2 - 2.65 g/cm3 (Measured)    2.14 g/cm3 (Calculated)

Optical Data of HalloysiteHide

Type:
Biaxial
RI values:
nα = 1.553 - 1.565 nβ = 1.559 - 1.569 nγ = 1.56 - 1.57
Max. Birefringence:
δ = 0.005 - 0.007
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
Low (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.
In focus
Dispersion:
r < v moderate

Chemistry of HalloysiteHide

Mindat Formula:
Al2Si2O5(OH)4 · n(H2O)
Element Weights:
Element% weight
O57.932 %
Si20.339 %
Al19.539 %
H2.190 %

Calculated from ideal end-member formula.
O
Si
Al
H
Elements listed:
Al, H, O, Si - search for minerals with similar chemistry
Common Impurities:
Ti,Ca,Na,K,Fe,Cr,Mg,Ni,Cu

Crystallography of HalloysiteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bb
Cell Parameters:
a = 5.14 Å, b = 8.9 Å, c = 7.214 Å
β = 99.7°
Ratio:
a:b:c = 0.578 : 1 : 0.811
Unit Cell V:
325.29 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Typically found as extremely fine-grained clayey masses. The two "forms" Halloysite-7Å and Halloysite-10Å are the most common. It has a tubular morphology at the nanometer scale.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.5 Å(90)
4.42 Å(100)
3.63 Å(90)
2.56 Å(80)
1.68 Å(80)
1.48 Å(90)
1.28 Å(70)
1.23 Å(70)
Comments:
Data for Halloysite-7Å

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
Geological Setting:
Halloysite is found in widely varied environments, including as an alteration of basaltic rocks, in hydrothermally altered fissure deposits in monzonites; it is also derived from feldspars, chlorites, micas, rhyolites, granites, volcanic ash, tuffs and pumices. More rarely found in granitic pegmatites, bauxites or laterites, and in some marine and glacial clays.

Synonyms of HalloysiteHide

Other Language Names for HalloysiteHide

Varieties of HalloysiteHide

Chrome-HalloysiteA pale blue chromian Halloysite
Copper-bearing HalloysiteA cupriferous variety of halloysite. Note formula is not balanced.
Ferrian HalloysiteAn Fe-rich variety of halloysite.
Zirconium-bearing HalloysiteHalloysite with content 3-4 wt.% ZrO2, probably due to zircon impurities.

Relationship of Halloysite to other SpeciesHide

Member of:
Kaolinite Subgroup > Kaolinite-Serpentine Group
Other Members of Kaolinite Subgroup:
DickiteAl2(Si2O5)(OH)4Mon. m : Bb
NacriteAl2(Si2O5)(OH)4Mon. m : Bb

Common AssociatesHide

Associations Based on Photo Data:
150 photos of Halloysite associated with AtacamiteCu2(OH)3Cl
84 photos of Halloysite associated with LibetheniteCu2(PO4)(OH)
65 photos of Halloysite associated with QuartzSiO2
55 photos of Halloysite associated with ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
46 photos of Halloysite associated with PseudomalachiteCu5(PO4)2(OH)4
16 photos of Halloysite associated with AzuriteCu3(CO3)2(OH)2
15 photos of Halloysite associated with MalachiteCu2(CO3)(OH)2
14 photos of Halloysite associated with OliveniteCu2(AsO4)(OH)
12 photos of Halloysite associated with ConichalciteCaCu(AsO4)(OH)
11 photos of Halloysite associated with CalciteCaCO3

Related Minerals - Strunz-mindat GroupingHide

9.ED.'Clinochrysotile'Mg3(Si2O5)(OH)4Mon. 2/m
9.ED.05DickiteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05NacriteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05KaoliniteAl2(Si2O5)(OH)4Tric. 1 : P1
9.ED.05Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
9.ED.10HisingeriteFe3+2(Si2O5)(OH)4 · 2H2OMon.
9.ED.10'Hydrohalloysite'Al2Si2O5(OH)4 · 2H2OMon. m
9.ED.15AntigoriteMg3(Si2O5)(OH)4Mon. m : Bm
9.ED.15Brindleyite(Ni,Al)3(Si,Al)2O5(OH)4Mon.
9.ED.15Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4Mon.
9.ED.15NépouiteNi3Si2O5(OH)4Orth.
9.ED.15PecoraiteNi3(Si2O5)(OH)4Mon.
9.ED.15GuidottiiteMn2Fe3+(Fe3+SiO5)(OH)4Hex. 6 : P63
9.ED.15LizarditeMg3(Si2O5)(OH)4Trig. 3m : P31m
9.ED.15Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
9.ED.15KellyiteMn2+2Al(AlSiO5)(OH)4Hex. 6 : P63
9.ED.15CronstedtiteFe2+2Fe3+((Si,Fe3+)2O5)(OH)4Trig. 3m : P31m
9.ED.15CaryopiliteMn2+3Si2O5(OH)4Mon.
9.ED.15AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
9.ED.15Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
9.ED.15ManandoniteLi2Al4(Si2AlB)O10(OH)8Orth. 222 : C2221
9.ED.20ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1Orth.
9.ED.20Neotocite(Mn,Fe)SiO3 · H2O (?)Amor.
9.ED.20Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2OAmor.
9.ED.20ImogoliteAl2SiO3(OH)4
9.ED.25BismutoferriteFe3+2Bi(SiO4)2(OH)Mon. m : Bm
9.ED.25ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm
9.ED.30'Pianlinite'Al2Si2O6(OH)2Orth.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
Used in applications similar to those of kaolinite, such as high-strength cements and high-quality ceramics.

Halloysite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for HalloysiteHide

References for HalloysiteHide

Reference List:
Daou, I., Mocuta, C., Lecomte-Nana, G.L., Tessier-Doyen, N., Peyratout, C., Guinebretière, R., Thiaudière, D. (2023): Dehydroxylation of Kaolinite and Halloysite-Rich Samples: An In Situ Study of the Texture and Structural Evolutions. Minerals, 13, 1418.
Berthier, P. (1826) Analyse de l'halloysite. Annales de Chimie et de Physique, Paris, 32, 332.
Hofmann, U., Endell, K., Wilm, D. (1934) Röntgenographische und kolloidchemische untersuchungen über ton. Angewandte Chemie: 47: 539-558.
Ross, C., Kerr, P. (1934) Halloysite and allophane. U.S. Geological Survey Professional Paper, 185G, 135.
Mehmel, M. (1935) Über die Struktur von Halloysit und Metahalloysit. Zeitschrift für Kristallographie, 90 (1-6). p.35-43. doi:10.1524/zkri.1935.90.1.35
Alexander, L. T., Faust, G. T., Hendricks, S. B., Insley, H., McMurdie, and H. F. (1943) Relationship of the clay minerals halloysite and endellite. American Mineralogist, 28 (1) 1-18
Bates, Thomas F.; Hildebrand, Fred A.; Swineford, Ada (1950) Morphology and structure of endellite and halloysite. American Mineralogist, 35 (7-8). 463-484
Murray, Haydn H. (1954) Structural variations of some kaolinites in relation to dehydrated halloysite. American Mineralogist, 39 (1-2) 97-108
Faust, George T. (1955) The endellite-halloysite nomenclature. American Mineralogist, 40 (11-12) 1110-1118
Faust, G. (1957) A study of the montmorillonite variety galapektite. Journal of the Washington Academy of Sciences, 47(5), 143 (as galapektite).
Mitra, G. B., Bhattacherjee, S. (1975) The structure of halloysite. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 31 (12) 2851-2857 doi:10.1107/s0567740875009041
Kohyama, Norihiko (1978) Observation of the Hydrated Form of Tubular Halloysite by an Electron Microscope Equipped with an Environmental Cell. Clays and Clay Minerals, 26 (1) 25-40 doi:10.1346/ccmn.1978.0260103
Bailey, S.W. (1980) Summary of recommendations of the AIPEA nomenclature committee. The Canadian Mineralogist: 18: 143-150.
Bayliss, Peter (1989) Unit-Cell Dimensions of Two-Dimensional Clay Minerals. Powder Diffraction, 4 (1). 19-20 doi:10.1017/s0885715600016249
Ertus, R., Dupuis, C., Trauth, N. (1989) Un nouveau type d'accumulation minérale de surface par épigénie d'altération météorique: halloysitisation sous couverture dans un karst sur calcaire silicifié. Comptes Rendus de l'Académie des Sciences de Paris, série II, 309, 595.
Ertus, R. (1990) Les néoformations d'halloysite dans les cryptokarsts oligo-miocènes de l'Entre-Sambre-et-Meuse (Belgique). Approche sédimentologique, pétrographique et minéralogique. Université Paris-sud Orsay et Faculté Polytechnique de Mons, 178 pages.
Johnson, Sheryl L. (1990) Thermal Stability of Halloysite by High-Pressure Differential Thermal Analysis. Clays and Clay Minerals, 38 (5) 477-484 doi:10.1346/ccmn.1990.0380503
Robertson, Ian D. M. (1991) Weathering of Granitic Muscovite to Kaolinite and Halloysite and of Plagioclase-Derived Kaolinite to Halloysite. Clays and Clay Minerals, 39 (2) 113-126 doi:10.1346/ccmn.1991.0390201
Brouard, E. (1992) Étude des cryptokarsts tertiaires de la Forêt de Bessède (Périgord, France) et de l'Entre-Sambre-et-Meuse (Belgique): lithologie, géochimie, néogénèse, et évolution des systèmes karstiques. Doctorate's Thesis, Université Paris-sud Orsay, 270 pages.
Gaines, Richard V.; Skinner, H. Catherine W.; Foord, Eugene E.; Mason, Brian; Rosenzweig, Abraham; King, Vandall T. (1997) Dana's New Mineralogy (8th ed.). Wiley-Interscience. 1872 pp.
Perruchot, A., Dupuis, C., Brouard, E., Nicaise, D., Ertus, R. (1997) L'halloysite karstique: comparaison des gisements types de Wallonie (Belgique) et du Perigord (France) Clay Minerals, 32 (2) 271-287 doi:10.1180/claymin.1997.032.2.08
Nicaise, D. (1998) L'halloysite des cryptokarsts néogènes de l'Entre-Sambre-et-Meuse (Belgique): synthèse géologique, minéralogique et géochimique. Thèse de Doctorat, Université Paris-sud Orsay, 145 pages.
de Ligny, Dominique; Navrotsky, Alexandra (1999) Energetics of kaolin polymorphs. American Mineralogist, 84 (4). p.506-516. doi:10.2138/am-1999-0404
(2001) Halloysite. Handbook of Mineralogy. Mineralogical Society of America
BURFORD, EUAN P., KIERANS, MARTIN, GADD, GEOFFREY M. (2003) Geomycology: fungi in mineral substrata. Mycologist, 17 (3). 98-107 doi:10.1017/s0269915x03003112
Joussein, E., Petit, S., Churchman, J., Theng, B., Righi, D., Delvaux, B. (2005) Halloysite clay minerals — a review. Clay Minerals, 40 (4) 383-426 doi:10.1180/0009855054040180
Kogure, T., Mori, K., Drits, V. A., Takai, Y. (2013) Structure of prismatic halloysite. American Mineralogist, 98 (5) 1008-1016 doi:10.2138/am.2013.4385
Post, J.L., Crawford, S.M. (2014) Uses of near-infared spectra for the identification of clay minerals. Applied Clay Science, 95. 383-387 doi:10.1016/j.clay.2014.02.010
He, Hongping, Ji, Shichao, Tao, Qi, Zhu, Jianxi, Chen, Tianhu, Liang, Xiaoliang, Li, Zhaohui, Dong, Hailiang (2017) Transformation of halloysite and kaolinite into beidellite under hydrothermal condition. American Mineralogist, 102 (5) 997-1005 doi:10.2138/am-2017-5935
Jin, Jiaqi, Assemi, Shoeleh, Asgar, Hassnain, Gadikota, Greeshma, Tran, Thang, Nguyen, William, McLennan, John D., Miller, Jan D. (2021) Characterization of Natural Consolidated Halloysite Nanotube Structures. Minerals, 11 (12) 1308 doi:10.3390/min11121308
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 69. European Journal of Mineralogy, 34 (5) 463-468 doi:10.5194/ejm-34-463-2022
Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2026) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 89. Mineralogical Magazine, 1-5 doi:10.1180/mgm.2026.10199

Localities for HalloysiteHide

Showing 858 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.
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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.
Argentina
 
  • Catamarca Province
    • Ambato Department
      • Los Varela
Raúl Jorge Tauber Larry´s collection
    • Andalgalá Department
      • Andalgalá
Econ Geol (1976)
  • Chubut Province
    • Cushamen Department
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
Padrón de Minas de la Provincia de Chubut (2005)
    • Mártires Department
      • Las Plumas
Padrón de Minas de la Provincia de Chubut (2005)
  • Salta Province
    • Los Andes department
      • San Antonio de los Cobres
        • El Quevar mining district
ROBL +1 other reference
  • Santa Cruz Province
    • Lago Buenos Aires Department
      • Sascha Project
Smith (2009)
Australia
 
  • New South Wales
    • Bathurst Co.
      • Carcoar
Liversidge (1888)
    • Brisbane Co.
      • Wingen
Rattigan (1967)
    • Durham Co.
      • Muswellbrook
        • Mount Arthur Coal Mine Complex
    • Farnell Co.
      • Byjerkerno Creek
Lishmund (1982)
    • Yancowinna Co.
      • Broken Hill district
Worner et al. (1982)
          • Broken Hill South Mine (BHS Mine; South Mine)
King (n.d.)
  • Queensland
    • Cloncurry Shire
      • Cloncurry
Con Constantinides collection
  • South Australia
    • Barossa Council
      • Penrice
Francis et al. (self published)
    • Copper Coast Council
Keeling et al. (2005)
    • District Council of Streaky Bay
John L. Keeling (200)
    • Goyder Regional Council
      • Burra
Pring et al. (1994)
    • Light Regional Council
      • St Johns
      • St Kitts
    • Maralinga Tjarutja (Maralinga Tjarutja Council)
John L. Keeling (200)
    • Pastoral Unincorporated Area
      • Iron Knob
Francis (2010)
      • Oakden Hills
Steve Sorrell Collection
      • Yellabinna Regional Reserve
        • Barton (Barton Siding)
          • Lake Ifould
John L. Keeling (200)
    • Robertstown
Noble et al. (1983)
  • Tasmania
    • Clarence city
Bottrill et al. (2020)
    • Derwent Valley municipality
Bottrill et al. (2008)
    • Hobart city
    • Huon Valley municipality
      • Huon-Channel region
        • Weld river district
Bottrill et al. (2008)
    • West Coast municipality
      • Zeehan mining district
        • Dundas mineral field
R Bottrill
  • Victoria
    • Macedon Ranges Shire
      • Lauriston
        • Lauriston Gold Field
G.H.F.Ulrich 1870. Contributions to the ...
  • Western Australia
    • City of Karratha
      • Whim Creek
Steve Sorrell Collection
    • Coolgardie Shire
      • Gibraltar Goldfield
Simpson (1948)
    • Dundas Shire
      • Norseman
Campbell (1906)
Campbell (1906)
    • East Pilbara Shire
      • Weeli Wolli Creek Area
        • Mining Area C
BHP
    • Esperance Shire
Bamforth et al. (2025)
    • Gingin Shire
On Gearkstite at Gingin
    • Kalgoorlie-Boulder Shire
      • Kalgoorlie-Boulder
        • Kalgoorlie Consolidated Gold Mines
Simpson (1948)
        • Mullingar
Simpson (1948)
    • Laverton Shire
      • Erilstoun Goldfield
Anand +8 other references
    • Leonora Shire
      • Linden Goldfield
Graham (2003)
    • Westonia Shire
      • Westonia
Simpson et al. (1948)
Austria
 
  • Burgenland
    • Oberpullendorf District
      • Markt Sankt Martin
        • Pauliberg
U. Kolitsch et al. (2009)
  • Carinthia
    • Sankt Veit an der Glan District
      • Frauenstein
        • Äußere Wimitz
G.Blaß
        • Kraig
Niedermayr et al. (1995)
    • Wolfsberg District
      • Bad Sankt Leonhard im Lavanttal
Niedermayr et al. (1995)
  • Lower Austria
    • Krems-Land District
      • Mühldorf
        • Amstall
Niedermayr (1996)
Neschen (n.d.)
Niedermayr (1997) +2 other references
Niedermayr (1985) +1 other reference
        • Wegscheid
Holzer et al. (1966) +1 other reference
    • Waidhofen an der Thaya District
      • Waldkirchen an der Thaya
Neschen (n.d.)
  • Salzburg
    • Zell am See District
      • Rauris
        • Alteck - Hoher Sonnblick area
          • Hoher Sonnblick
Schnorrer et al. (2000)
  • Styria
    • Bruck-Mürzzuschlag District
      • Kindberg
        • Edelsdorf
Hagenguth (1988)
    • Leoben District
      • Leoben
        • Galgenberg
Hollerer (1999)
      • Sankt Peter-Freienstein
Taucher et al. (2001)
    • Südoststeiermark District
      • Feldbach
        • Mühldorf bei Feldbach
Postl et al. (1996)
      • Klöch
[var: Copper-bearing Halloysite] Taucher et al. (1998)
  • Upper Austria
    • Gmunden District
      • Bad Ischl
        • Perneck
Arthofer et al. (2025) +2 other references
    • Perg District
      • Schwertberg
Exel (1993)
Belgium
 
  • Flanders
    • Limburg
      • Riemst
Hatert et al. (2002)
  • Wallonia
    • Hainaut
      • Bernissart
        • Blaton
Gulinck et al. (1957) +3 other references
    • Liège
Malaise (1913) +1 other reference
Moressée (1910) +1 other reference
      • Chaudfontaine
Malaise (1913) +2 other references
Hatert et al. (2002)
      • Flémalle
Hatert et al. (2002)
      • Héron
Stainier (1908) +1 other reference
      • Liège
Berthier (1826) +5 other references
      • Sprimont
Buurman et al. (1968) +1 other reference
        • Rouvreux
Buurman et al. (1968) +1 other reference
Hatert et al. (2002)
Dejonghe et al. (1993)
Hatert et al. (2002)
Dejonghe et al. (1993) +1 other reference
Hatert et al. (2002)
Hatert et al. (2002)
Malaise (1913) +2 other references
        • Visé
Hatert et al. (2002)
      • Wanze
Malaise (1913) +1 other reference
Hatert et al. (2002)
Hatert et al. (2002)
Dejonghe et al. (1993)
    • Namur
      • Dinant
Hatert et al. (2002)
      • Eghezée
Hatert et al. (2002)
      • Floreffe
Hatert et al. (2002)
Hatert et al. (2002)
      • Fosses-la-Ville
Hatert et al. (2002)
      • Houyet
        • Celles
Hatert et al. (2002)
      • Mettet
Hatert et al. (2002)
Hatert et al. (2002)
Van Goethem et al. (1983) +3 other references
Hatert et al. (2002)
Hatert et al. (2002)
      • Philippeville
Hatert et al. (2002)
Bolivia
 
  • Oruro
    • Pantaleón Dalence Province
      • Huanuni
アルセオスバルト (1989) +2 other references
  • Potosí
    • Tomás Frías Province
      • Potosí (Potosí Municipality)
        • Cerro de Potosí (Cerro Rico)
Lindgren et al. (1928)
Brazil
 
  • Amazonas
    • Presidente Figueiredo
      • Pitinga mine
Bastos Neto et al. (2026)
  • Minas Gerais
    • Caldas
Waber et al. (1992) +2 other references
Gomes et al. (2023)
  • Santa Catarina
Dani et al. (2001)
Burkina Faso
 
  • Centre-Ouest Region
    • Sanguié Province
      • Réo Department
Kříbek et al. (2016)
Cameroon
 
  • South Region
    • Océan
Soh Tamehe et al. (2024)
Canada
 
  • British Columbia
    • Skeena Mining Division
      • Iskut River
        • Sulphurets District
          • KSM project
Febbo et al. (2019)
  • Ontario
    • Cochrane District
      • Timmins
        • Kidd Township
Kidd Operations
  • Québec
    • Centre-du-Québec
      • Arthabaska RCM
        • Saints-Martyrs-Canadiens
Robinson et al. (1996)
    • Estrie
      • Les Sources RCM
        • Val-des-Sources
Horváth et al. (2013)
    • Montréal
176-178. +2 other references
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Sierra Gorda
Chukanov et al. (2013)
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Las Pintadas mining district
          • Cerro Pintado
Terry Szenics
    • Huasco Province
      • Vallenar
Maksaev et al. (2010)
Maksaev et al. (2010)
China
 
  • Anhui
    • Chizhou
      • Qingyang Co.
Pan et al. (1999)
  • Fujian
    • Longyan
      • Shanghang Co.
        • Zijinshan ore field
Rensheng Huang (2008)
Zijin Mining Group Company Limited
      • Xinluo District
Wilson (2004)
    • Xiamen
      • Tong'an District
Mao Xingli and Yan Yipeng (1987) +1 other reference
  • Guangdong
    • Shaoguan
      • Nanxiong Co.
Liu et al. (2025)
  • Guangxi
    • Baise
      • Pingguo Co.
Zhongcao Liang (1983) +1 other reference
    • Guigang
      • Pingnan Co.
Fu et al. (2024)
  • Guizhou
    • Bijie
Wilson (2004)
    • Zunyi
      • Bozhou District
Kehua Yin (2009)
  • Henan
    • Luoyang
      • Luoning County
Qiao et al. (2024)
  • Hubei
    • Huangshi
      • Daye Co.
        • Edong Mining District
Zhang et al. (2025)
    • Xianning
      • Jiayu Co.
Hanlie Hong and Liyun Tie (2005) +1 other reference
  • Hunan
    • Chenzhou
      • Guiyang Co.
        • Dafang Au-Ag-Pb-Zn deposit
Fushan Wang (1991)
Fushan Wang (1991)
    • Hengyang
      • Hengdong Co.
Yansong Tan (1980)
    • Huaihua
      • Chenxi Co.
Shu-Gen Zhang et al. (2006)
    • Shaoyang
      • Dongkou Co.
Jiewu Gao and Diling Deng (1982)
Hunan 230 Laboratory et al. (1976)
  • Inner Mongolia
    • Baotou City
      • Bayan Obo mining district
[var: Ferrian Halloysite] Qing-chang (1981)
    • Wuhai (Wuhai Prefecture)
      • Hainan District
        • Laoshidan
Jin Li et al. (1989)
  • Jiangsu
    • Suzhou
      • Huqiu District
Kecong Han and Shengyun Ma (1985)
  • Jiangxi
    • Ganzhou
      • Anyuan Co.
He et al. (2026)
      • Dingnan Co.
Shi et al. (2024)
      • Gan Co.
Xie et al. (2024) +1 other reference
      • Longnan Co.
Chen +6 other references
Shi et al. (2024)
      • Ningdu Co.
Wan et al. (2026)
      • Xunwu Co.
Wu et al. (1996)
    • Nanchang
      • Nanchang Co.
Chen et al. (1997)
    • Shangrao
      • Yanshan Co. (Qianshan Co.)
Rengui Wu and Dagan Yu (2000)
    • Yichun
      • Yuanzhou District
Shufang He and Jianping Lu (2001)
  • Liaoning
    • Fushun
      • Fushun Co.
Minzhi Yang (2003)
  • Qinghai
    • Yushu Tibetan Autonomous Prefecture
      • Zadoi Co. (Zaduo Co.)
Shihong Tian et al. (2009)
Shihong Tian et al. (2009)
  • Shaanxi
    • Hanzhong
      • Mian County
Vielreicher et al. (2003)
      • Yang County
Zilin Tang et al. (1988)
  • Shandong
    • Weihai
      • Rushan Co.
        • Muping-Rushan metallogenic belt
          • Rushan ore field
Yuming Liu et al. (2011)
  • Shanxi
    • Yangquan
      • Jiao District
wrgis.wr.usgs.gov (2004)
  • Sichuan
    • Mianyang
      • Beichuan Co.
Zufu Wang et al. (1987)
  • Tibet
    • Ngari
      • Gêrzê Co.
        • Duolong ore field
Fu et al. (2026)
    • Qamdo Prefecture (Changdu Prefecture)
      • Jomdo Co. (Jiangda Co.)
pubs.usgs.gov (2006)
      • Riwoqê Co. (Leiwuqi Co.)
Yingchao Liu et al. (2013)
  • Xinjiang
    • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
      • Yizhou District
Zhao et al. (2025)
Wang et al. (2025)
        • Tuwu-Yandong copper ore belt
Yang et al. (2005)
    • Ili Kazakh Autonomous Prefecture
      • Altay Prefecture (Aletai Prefecture)
        • Jeminay County
          • Eastern Sawur Caldera Complex
Yang et al. (2009)
  • Yunnan
    • Honghe
      • Jianshui County
        • Puxiong
Wang et al. (2024)
    • Pu'er
      • Mojiang County
Xiao +5 other references
    • Qujing
      • Huize County
Dongmei Tang et al. (2006)
    • Xishuangbanna
      • Jinghong County
Wilson (2004)
  • Zhejiang
    • Hangzhou
      • Lin'an District
        • Changhua
Zong-Ting Liao et al. (2004)
    • Lishui
      • Qingtian County
        • Haikou
Jambor et al. (1992)
Colombia
 
  • Boyacá Department
    • Chivor
- (2002)
    • Western Boyacá Province
      • Quípama
Ziga et al. (2019)
Costa Rica
 
  • Alajuela Province
    • Sarchí Canton
Rodríguez et al. (2017)
Czech Republic
 
  • Olomouc Region
    • Jeseník District
Kuttna +1 other reference
  • Pardubice Region
    • Chrudim District
Fengl (2.)
  • Ústí nad Labem Region
    • Teplice District
      • Zabrušany
Bouška
Strübel
  • Vysočina Region
    • Třebíč District
      • Lukov
Natural History Museum London 2015
      • Třebíč
        • Řípov
Trnka M (1982)
    • Žďár nad Sázavou District
Novák et al. (1999)
Ecuador
 
  • Azuay Province
    • Cuenca Canton
- (2005)
    • Sigsig Canton
- (2005)
  • Cañar Province
    • Azogues Canton
- (2005)
  • Loja Province
- (2005)
  • Zamora-Chinchipe Province
    • El Pangui Canton
Singer et al. (2008)
    • Yacuambi Canton
- (2005)
    • Zamora Canton
      • Nambija mining district
Singer et al. (2008)
Egypt
 
  • Giza Governorate
    • Black Desert
      • El Bahariya Depression
El-Habaak et al. (2016)
El Salvador
 
  • Usulután Department
    • Berlín
Torio-Henríquez (2007)
Faroe Islands
 
  • Suðuroy Region
    • Suðuroy
      • Hvalba
Weisenberger et al. (2012)
Finland
 
  • Lapland
    • Sodankylä
Peuraniemi
  • Uusimaa
    • Lohja
Jyrki Autio Collection. Joy Desor ...
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Vichy
Nicolas et al. (1963)
    • Ardèche
      • Largentière
        • Mirabel
Ch. Robert
Ch. Robert
    • Haute-Loire
      • Brioude
        • Salzuit
      • Le Puy-en-Velay
        • Le Pertuis
- (1974)
    • Puy-de-Dôme
      • Thiers
        • Puy-Guillaume
          • Philibin
P.G. Pélisson (pelisson@inist.fr)
    • Rhône
      • Villefranche-sur-Saône
        • Chessy
Coueille (1988)
  • Brittany
    • Finistère
      • Châteaulin
Lacroix (1893) +1 other reference
  • Grand Est
    • Bas-Rhin
      • Molsheim
        • Schirmeck
Wittern et al. (1997)
      • Sélestat-Erstein
        • Dambach-la-Ville
Wittern et al. (1997)
    • Haut-Rhin
      • Colmar-Ribeauvillé
        • Zimmerbach
Wittern et al. (1997)
  • Ile-de-France
    • Seine-et-Marne
      • Provins
        • Provins
Engelhardt et al. (1954)
        • Sainte-Colombe
Belot (1978)
  • Nouvelle-Aquitaine
    • Dordogne
      • Nontron
        • Saint-Pardoux-la-Rivière
BRGM survey data
    • Haute-Vienne
      • Bellac
        • Razès
          • Chanteloube
            • Vilatte Quarries (La Vilate)
Boisson (1988)
      • Limoges
        • Saint-Yrieix-la-Perche
Gilg et al. (1997)
  • Pays de la Loire
    • Loire-Atlantique
      • Châteaubriant-Ancenis
Baret (1905)
      • Nantes
        • Couëron
Baret (1905)
        • Nantes
Baret (1905)
  • Provence-Alpes-Côte d'Azur
    • Var
      • Toulon
        • Le Pradet
van den Berg (1987) +1 other reference
CLAUDE Jean Marie collection et ...
Georgia
 
  • Kvemo Kartli
    • Bolnisi District
Şafak Utku Sönmez et al. (2022)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Bötzingen
Spürgin et al. (2019)
      • Ortenaukreis
        • Oberwolfach
Walenta (1992)
  • Bavaria
    • Lower Bavaria
      • Passau District
Weiß (1990)
      • Regen District
        • Zwiesel
          • Rabenstein
Habel (2006)
    • Lower Franconia
      • Haßberge District
        • Maroldsweisach
Wittern (2001)
    • Upper Franconia
      • Wunsiedel im Fichtelgebirge
        • Arzberg
Breithaupt (1841) +1 other reference
Blaß et al. (1999)
  • Lower Saxony
    • Göttingen District
      • Adelebsen
  • North Rhine-Westphalia
    • Arnsberg
      • Hochsauerlandkreis
        • Arnsberg
          • Uentrop
Weiß (1990)
    • Düsseldorf
      • Mettmann
        • Wülfrath
          • Rohdenhaus
Schnorrer-Köhler (1988) +1 other reference
  • Rhineland-Palatinate
    • Altenkirchen
      • Betzdorf-Gebhardshain
        • Kausen
Wittern (2001) +1 other reference
    • Mayen-Koblenz
      • Mendig
        • Mendig
Blaß et al. (1999)
Blaß et al. (1999)
          • Wingertsberg
Blaß et al. (1999)
      • Pellenz
        • Kruft
Blaß et al. (1999)
    • Vulkaneifel
      • Gerolstein
        • Hillesheim
Blaß et al. (2002)
  • Saxony
    • Erzgebirgskreis
      • Ehrenfriedersdorf
Wittern (2001)
  • Thuringia
    • Saalfeld-Rudolstadt District
      • Unterwellenborn
Wittern (2001)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Agios Konstantinos (Kamariza)
          • Kamariza Mines (Kamareza Mines)
Möckel (2000)
Möckel (2000)
          • Mercati mines
Lang (1890)
        • Lophos
          • Agrileza mines
        • Sounion
          • Cato Sounio mines
Möckel (2000)
  • Central Greece
    • Boeotia
      • Orchomenus
Pantó et al. (2001) +1 other reference
    • Euboea
      • Dirfys-Messapia
[var: Chrome-Halloysite]
Greenland
 
  • Kujalleq
Petersen et al. (1993) +1 other reference
Hungary
 
  • Borsod-Abaúj-Zemplén County
    • Kazincbarcika District
      • Rudabánya
Szakáll: Minerals of Rudabánya
    • Miskolc District
Zajzon N et al. (20014)
    • Tokaj District
Koch (1985)
      • Tarcal
www.geomania.hu (2013)
  • Budapest
Sándor et al. (2005)
  • Győr-Moson-Sopron County
    • Fenyőfő
Koch (1985)
Szakáll et al. (1996)
  • Heves County
    • Gyöngyös District
      • Gyöngyösoroszi
Koch (1985)
  • Nógrád County
  • Pest County
    • Szob District
      • Márianosztra
Szakáll & Jánosi. Minerals of Hungary
      • Nagybörzsöny
Szakáll et al. (1996)
  • Veszprém County
    • Ajka District
      • Halimba
Szakáll et al. (1996)
      • Nyirád
Szakáll et al. (1996)
    • Pápa District
Koch (1985)
India
 
  • Jharkhand
    • East Singhbhum District
      • Mosaboni
S. G. Tenainkai et al. (1991)
  • Karnataka
Nayak et al. (2024)
  • Kerala
    • Kollam District
Thomas et al. (1987)
Indonesia
 
  • Gorontalo Province
Econ Geol (1990)
  • North Maluku Province
    • Obi Islands
      • Obi Island
Bambang Nugroho et al. (2024)
  • North Sulawesi Province
    • South Minahasa Regency
      • Ratatotok mining area
Turner et al. (1994)
  • Papua Province
    • Mimika Regency
      • Gunung Bijih District
Prendergast (2003)
Prendergast (2003)
  • South Sulawesi Province
    • Gowa Regency
Nur et al. (2012)
Nur et al. (2011)
  • West Java Province
    • Bandung Regency
Asri et al. (2023)
      • Tangkuban Perahu Volcano
Dani Lukman Hakim (2016)
    • Bogor Regency
Milési et al. (1999)
Iran
 
  • East Azerbaijan Province
    • Ajab Shir County
 Abedini
Iraq
 
  • Al Anbar Governorate
    • Ar-Rutba District
      • Wadi Al-Hussainiya
Al-Bassam et al. (1998)
Ireland
 
  • Connacht
    • Galway County
      • Killimor
de Haller +1 other reference
Israel
 
  • Jerusalem District
    • Mateh Yehuda Regional council
Shulamit Gross (1977)
Italy
 
  • Campania
    • Caserta
      • Roccamonfina Volcanic Complex
        • Conca della Campania
Ghiara et al. (1973)
    • Metropolitan City of Naples
[Lapis 1994:5 p.13-23
  • Lazio
    • Metropolitan City of Rome Capital
      • Bracciano
        • Castel Giuliano
          • Pianciano
Stoppa et al. (1995)
      • Campagnano di Roma
Stoppa et al. (2019)
      • Cerveteri
Stoppa et al. (2019)
        • Sasso di Furbara (Sasso)
Barrese et al. (1994)
      • Manziana
Lombardi et al. (1979) +1 other reference
Lombardi et al. (1979)
      • Mazzano Romano
Barrese et al. (1986) +1 other reference
Panei (2010)
Lombardi et al. (1979) +1 other reference
    • Viterbo Province
      • Montefiascone
Stoppa et al. (2019)
  • Liguria
    • Genoa
      • Genoa
Ciriotti et al. (2010)
      • Sestri Levante
Dott. Cristina Carbone-Dipteris-Genova: analysis June 2007 (paper in preparation)
  • Piedmont
    • Biella Province
      • Campiglia Cervo
        • San Paolo Cervo
Martini et al. (2012)
Martini et al. (2012)
    • Cuneo Province
      • Bagnolo Piemonte
Bruno Marello et al. (2023)
  • Sardinia
    • Metropolitan City of Cagliari
      • Sarroch
Orlandi et al. (2013) +1 other reference
    • Nuoro Province
      • Gadoni
Stara et al. (1999)
    • Sassari Province
      • La Maddalena
        • La Maddalena Island
Billows (1941)
      • Osilo
Simeone et al. (1999)
    • South Sardinia Province
      • Carbonia
        • Barbusi
Baldoni et al. (2013) +1 other reference
      • Domusnovas
Stara P. (1996)
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Torri et al. (2017)
Torri et al. (2017)
Savelli F. (1935) +1 other reference
      • Rio
De Michele (1974)
E. Manasse (Isola d'Elba)
      • Rosignano Marittimo
        • Castiglioncello
Bonifazi (2020)
Sammartino (2014)
    • Massa-Carrara Province
Orlandi et al. (1994) +1 other reference
        • Miseglie quarrying basin (Miseglia-Fantiscritti quarrying basin; Fantiscritti quarrying basin)
Orlandi et al. (2009)
        • Torano quarrying basin
Orlandi et al. (1989) +1 other reference
  • Umbria
    • Perugia Province
      • Sigillo
        • Monte Cucco
Forti et al. (1989)
  • Veneto
    • Vicenza Province
      • Torrebelvicino
        • Mercanti Valley
Bertoldi et al. (1984)
Bortolozzi (n.d.)
Japan
 
  • Akita Prefecture
    • Odate
      • Hanaoka mine
        • Kanondo deposit
Akira Kato (2011)
  • Ehime Prefecture
    • Imabari City
皆川鉄雄 et al. (2001)
  • Fukushima Prefecture
    • Ishikawa District
      • Ishikawa town (Ishikawa-machi)
        • Wagu
- (2002)
  • Hiroshima Prefecture
Sakae et al. (1975) +1 other reference
  • Hokkaidō Prefecture
    • Iburi Subprefecture
      • Noboribetsu City
INOUE et al. (2017)
      • Shiraoi District
        • Shiraoi-cho
米田哲朗. (1989)
  • Hyogo Prefecture
Myint (1996)
  • Iwate Prefecture
    • Hachimantai City
Iichiro Takahashi (1957)
    • Waga District
      • Nishiwaga
        • Yuda
Yoshihiro SEKINE et al. (1961)
  • Kagoshima Prefecture
    • Hishikari gold mine
Ibaraki et al. (1991)
  • Mie Prefecture
    • Nabari City
奥村滋. (1986)
  • Nagasaki Prefecture
    • Iki City
      • Iki Islands
Noriyuki FUJII (1961)
    • Tsushima City (Tsushima islands)
      • Tsushima-Shimoshima island
        • Azu
中川昌治 et al. (1998) +1 other reference
  • Niigata Prefecture
    • Itoigawa City
Display captions at local museum.
  • Saga Prefecture
    • Higashimatsuura district
      • Genkai-cho
        • Hinodematsu
Ishibashi (1974)
  • Shimane Prefecture
    • Nita District
      • Okuizumo
        • Yokota
Sudo (1991) +1 other reference
  • Tokyo Metropolis
    • Nishitama district
      • Okutama-cho
Bull. Kanagawa pref. Mus. (Nat. Sci.)
  • Yamagata Prefecture
    • Minamimurayama-gun
      • Nakagawa-mura
Sudô et al. (1949)
Kazakhstan
 
  • Jambyl Region
    • Moiynkum District
Evseev (1995) +2 other references
  • Turkistan Region
    • Sozak District
      • Aksumbe
Pekov (1998)
  • Ulytau Region
    • Ulytau District
      • Chu-Ili Mountains
Pekov (1998)
Kosovo
 
  • Pristina District
    • Novo Brdo
Mineral deposits and mining districts ...
Laos
 
  • Xaisomboun Province
    • Anouvong District
Manaka et al. (2014)
Madagascar
 
  • Atsimo-Andrefana
    • Ampanihy District
Behier (1963)
  • Betsiboka
    • Tsaratanàna District
      • Bekapaika Commune
Mücke et al. (1978)
  • Diana
    • Ambanja District
      • Anorotsangana
Behier (1963)
      • Antsirabe
Ren et al. (2025)
Malaysia
 
  • Perak
    • Kinta District
      • Ipoh
        • Simpang Pulai
          • Bukit Lampas
Ariffin et al. (2008)
Mexico
 
  • Baja California Sur
    • Mulegé Municipality
      • Santa Rosalía
Moore (1998)
  • Michoacan
    • Coalcomám Municipality
Ref.: Revista Mexicana de Ciencias Geológicas et al. (2000)
  • Zacatecas
    • Fresnillo Municipality
Dilley (1993)
Middle East
 
Gross (1977)
Myanmar
 
  • Kachin State
    • Mohnyin District
      • Hpakant Township (Hpakan; Phakant; Phakan)
        • Hpakant-Tawmaw Jade Tract
Zhang et al. (2022)
Netherlands
 
  • Limburg
    • Valkenburg aan de Geul
      • Berg en Terblijt
T.G. Nijland
T.G. Nijland +1 other reference
        • Geulhem
Cesco Ramakers Collection +1 other reference
New Zealand
 
  • New Zealand Outlying Islands
    • Kermadec Islands
Muiruru F.G. (1985)
  • Northland Region
    • Kaipara District
      • Hukatere Peninsula
Jones (1972)
Hayward
  • Waikato Region
    • Hauraki District
      • Waihi Beach
process origins of the Corbett and Ratarua ignimbrites and the Hikurangi Rhyolite (Thesis, Master of Science ) +1 other reference
      • Waitekauri
Simpson et al. (2001)
    • Matamata-Piako District
      • Te Aroha
Courtney et al. (1990)
    • Thames-Coromandel District
      • Coromandel peninsula
        • Whitianga
P.R. Moore (1983)
    • Waikato District
      • Huntly
Wezenburg (1988)
Norway
 
  • Akershus
    • Nittedal
Kvamsdal (1998)
  • Buskerud
    • Øvre Eiker
      • Gunhildrud
Jahren et al. (1998)
  • Nordland
    • Hamarøy
Husdal (2008)
  • Telemark
    • Bamble
Wilke (1976)
Wel (1973)
  • Vestfold
    • Larvik Commune
      • Malerød
Berge (1993) +1 other reference
Oman
 
  • Muscat Governorate
    • Sib
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Swabi District
M. Qasim Jan et al. (1985)
Panama
 
  • Los Santos Province
Corral et al. (2011)
Papua New Guinea
 
  • East New Britain Province
Lindley (1998)
Peru
 
  • Ancash
    • Bolognesi Province
      • Huallanca District
        • Huanzala
Imai et al. (1985) +1 other reference
  • Apurímac
    • Cotabambas Province
      • Las Bambas District
www.portergeo.com.au (2007)
  • Cajamarca
    • Cajamarca Province
      • Cajamarca District
Dill et al. (1997)
Dill et al. (1997)
  • Cuzco
    • Espinar Province
      • Ahuancata
Singer et al. (2008)
    • Paruro Province
Boni et al. (2009)
  • Pasco
    • Pasco province
      • Cerro de Pasco
Hewett (1910)
Philippines
 
  • Mindanao
    • Caraga Region
      • Surigao del Norte Province
Ignacio (2006)
    • Zamboanga Peninsula Region
      • Zamboanga del Norte Province
de Sá et al. (2024)
Poland
 
  • Lower Silesian Voivodeship
Kucha et al. (1990)
      • Gmina Krotoszyce
Sakiewicz P. et al. (2011)
    • Strzelin County
      • Gmina Przeworno
        • Krzywina
Lis et al. (1986)
        • Przeworno
Chmura K. (1969)
    • Świdnica County
      • Gmina Żarów
Lis et al. (1986)
    • Ząbkowice Śląskie County
      • Gmina Ząbkowice Śląskie
Lis et al. (1986)
  • Silesian Voivodeship
    • Tarnowskie Góry County
      • Miasteczko Śląskie
        • Bibiela
Friedrich Raefier (1915)
Portugal
 
  • Bragança
    • Freixo de Espada à Cinta
      • Lagoaça e Fornos
Gomes et al. (2010)
  • Madeira
    • Madeira Island
      • Ribeira Brava
        • Serra de Água
          • Boca da Encumeada pass
CEDOM
Romania
 
  • Harghita County
Edited by Szakáll-Kristály (2010)
    • Sântimbru
Ed.:Szakáll S.-Kristály ...
  • Hunedoara County
    • Certeju de Sus
Comptes Rendus Geosciences Volume 335
  • Maramureș County
    • Tăuții-Măgherăuș
      • Aurum
Damian et al. (2024)
  • Satu Mare County
    • Turț
Clain et al. (2006)
Russia
 
  • Adygea (Republic of Adygea)
    • Maykopsky District
Pekov I.V. et al. (2010)
  • Altai Krai
    • Rubtsovsky District
Pekov et al. (2011)
  • Altai Republic
Luzgin et al. (1977)
  • Chelyabinsk Oblast
    • Ilmen Mountains
Bailey (1980)
    • Magnitogorsk
      • Sakhara District (Sakharinskii)
        • Sakhara massif
Mikhailov (2000)
    • Plastovsky District
Mashkovtsev et al. (2010)
    • Verkhny Ufaley
      • Ufaley District (Ufalei District)
Berger et al. (2011) +1 other reference
    • Vishnevye Mountains
webmineral.ru (2016)
  • Kabardino-Balkaria
    • Elbrussky District
Gurbanov et al. (2008)
  • Kamchatka Krai
    • Yelizovsky District
      • Kronotsky Reserve
maurice.strahlen.org (2003) +1 other reference
  • Krasnoyarsk Krai
    • Enisei Range (Yenisei Ridge; Enisei Ridge)
      • Parvaya Noiba River
Pekov (1998)
Пекин (2010) +1 other reference
  • Murmansk Oblast
 ...
    • Kovdorsky District
    • Lovozersky District
- (2001)
      • Seidozero Lake
Pekov (2003)
[var: Zirconium-bearing Halloysite] Semenov E.I. (1972)
[var: Zirconium-bearing Halloysite] Semenov E.I. (1972)
  • Orenburg Oblast
    • Dombarovsky District
Gorbachev et al. (2004)
    • Svetlinsky District
      • Buruktal Mining District
        • Buruktal massif
Talovina et al. (2003)
[World of Stones 12:49]
    • Polar Yakutia
      • Tomtor Massif
Lazareva et al. (2015)
Volokhin et al. (2016)
  • Stavropol Krai
    • Lermontov
      • Beshtau Mountain
Pekov (1998)
  • Sverdlovsk Oblast
    • Rezhevsky District
      • Lipovsk pegmatite field
Igor.V. Pekov (2008)
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2021)
  • Zabaykalsky Krai
    • Nerchinsky District
      • Adun-Cholon Range
Kasatkin et al. (2014)
Saint Lucia
 
  • Soufrière
A Mars Analogue Site. Masters Thesis +1 other reference
Serbia
 
  • Central Serbia
    • Braničevo District
      • Žagubica
Zivanovic (2019)
    • Moravica District
      • Gornji Milanovac
Acta Geologica Hungarica 46:313-320
    • Šumadija District
      • Arandjelovac
Ministry of Mining and Energy (2002)
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica District
      • Badín
Koděra et al. (1986)
      • Hrochoť
Koděra et al. (1986)
      • Malachov
Koděra et al. (1986)
    • Banská Štiavnica District
Koděra et al. (1986)
    • Krupina District
      • Hontianske Nemce
Koděra et al. (1986)
    • Poltár District
      • Breznička
Koděra et al. (1986)
Koděra et al. (1986)
    • Revúca District
Koděra et al. (1986)
Koděra et al. (1986)
      • Rákoš
Miškovic J. (1990)
      • Šivetice
Konečný et al. (2011)
    • Žarnovica District
      • Nová Baňa
Koděra et al. (1986)
    • Žiar nad Hronom District
Koděra et al. (1986)
      • Kremnica
Ďuďa (1993)
  • Bratislava Region
    • Pezinok District
      • Pezinok
Uher et al. (2000)
  • Košice Region
    • Košice-okolie District
      • Družstevná pri Hornáde
Koděra et al. (1986)
Koděra et al. (1986)
Koděra et al. (1986)
      • Košický Klečenov
Pauliš et al. (2002)
      • Nižná Myšľa
Ďuďa R. et al. (1985)
      • Slanec
Pauliš et al. (2002)
      • Vyšný Medzev
Koděra et al. (1986)
    • Michalovce District
      • Jovsa
Koděra et al. (1986)
      • Michalovce
Duda +1 other reference
      • Poruba pod Vihorlatom
Řídkošil et al. (2001)
Bačo et al. (1987)
    • Rožňava District
      • Betliar
Koděra et al. (1986)
      • Ochtiná
Cílek V. +1 other reference
      • Rožňava
Pauliš et al. (2002)
Koděra et al. (1986)
    • Sobrance District
Bacsó
    • Spišská Nová Ves District
Koděra et al. (1986)
    • Trebišov District
Koděra
  • Nitra Region
    • Levice District
      • Devičany
Majzlan et al. (2025)
Koděra et al. (1986)
Koděra et al. (1986) +2 other references
Majzlan et al. (2025)
  • Prešov Region
    • Prešov District
      • Červenica
        • Dubník
Koděra et al. (1986)
[var: Ferrian Halloysite] Koděra et al. (1986)
      • Fintice
Ďuďa
      • Gregorovce
Duda eut al.
Duda et all.
      • Zlatá Baňa
Duda et. all.
    • Snina District
      • Zemplínske Hámre
Bačo et al. (1987)
    • Vranov nad Topľou District
      • Banské
Duda et all.
[var: Ferrian Halloysite] Koděra et al. (1986)
      • Komárany
Ďuďa
Duda et all.
  • Trenčín Region
    • Prievidza District
Koděra et al. (1986)
South Africa
 
  • Mpumalanga
    • Ehlanzeni District Municipality
      • Mbombela Local Municipality
        • Mbombela
Martini (1997)
  • North West
    • Bojanala Platinum District Municipality
      • Madibeng Local Municipality
Horiuchi et al. (2014)
South Korea
 
  • South Gyeongsang Province
    • Sancheong County
Jo et al. (2023)
  • South Jeolla Province
    • Jindo County
      • Gasado Island
"Exploration and utilization of the ...
Spain
 
  • Andalusia
    • Almería
Bull. Soc. Franç. Minéralo. ...
      • Níjar
        • Pozo de Los Frailes
Castro et al. (2019)
A. Arribas et al. (2005)
      • Pulpí
Mendoza et al. (2006)
      • Tíjola
García Guirado (2016)
    • Málaga
      • Ronda Massif
Centro de interpretación de la ...
  • Canary Islands
    • Santa Cruz de Tenerife Province
      • Tenerife
        • Candelaria
          • Barranco Hondo
Dill et al. (2023)
  • Castile and Leon
    • Salamanca
      • Golpejas
        • Golpejas Mining group
Calvo Rebollar et al. (2024)
  • Catalonia
    • Barcelona
      • Baix Llobregat
        • Gavà
Bosch +6 other references
Díaz-Acha et al. (2022)
Díaz-Acha et al. (2022)
      • Barcelonès
        • Barcelona
          • Puig d'Olorda
Bareche (2005)
        • Barcelona city
          • Collserola mountain range
            • Santa Creu d'Olorda
Mata i Perelló (1990)
      • Vallès Occidental-Baix Llobregat
        • Sant Cugat del Vallès-El Papiol
Mineralogistes de Catalunya (2/3)
      • Vallès Occidental
        • Montcada i Reixac
Mineralogistes de Catalunya (1997)
    • Girona
      • Ribes de Freser
Joan Rosell et al. (2022)
  • Murcia
    • La Unión
Joan Rosell
Sweden
 
  • Dalarna County
    • Hedemora
      • Garpenberg
Öhman et al. (2000)
  • Skåne County
    • Helsingborg
      • Fjärestad
Norin (1949)
  • Västerbotten County
    • Skellefteå
Sandström (2008)
Switzerland
 
  • Jura
    • Delémont
Stalder et al. (1998)
  • Valais
    • Sierre
      • Sierre
        • Granges
Cuchet et al. (2002)
Taiwan
 
  • New Taipei City
    • Ruifang District
L. P. Tan (1993)
Tajikistan
 
  • Sughd
    • Ghafurov District
      • Adrasmon (Adrasman)
Гецева et al. (1956) +2 other references
Menchinskaya et al. (1973) +1 other reference
    • Mastchoh District
      • Altyn-Topkan ore field (Zarnisor ore field)
Xinjiang Tacheng International Resources Ltd.
Tanzania
 
  • Kigoma Region
Wilhelmij et al. (2016) +1 other reference
  • Pwani Region
    • Kisarawe District
      • Pugu Hills
Schwaighofer et al. (1987)
Thailand
 
  • Phang Nga Province
    • Thai Mueang
      • Lam Phi
        • Chang Non
Patrice Queneau Collection First ...
Tunisia
 
  • Béja
Decrée et al. (2008)
Turkey
 
  • Aksaray Province
    • Aksaray District
      • Aksaray
Çelik Karakaya et al. (2021)
  • Artvin Province
    • Yusufeli District
      • Balcılı Camp
Rabayrol et al. (2023)
Rabayrol et al. (2023)
Rabayrol et al. (2023)
  • Balikesir Province
Yigit (2012)
    • Biga Peninsula
Çoban (1999)
  • Çanakkale Province
    • Çan District
Ercan et al. (2022)
Ercan et al. (2022)
    • Lapseki District
Yigit (2012)
Erik Vercammen collection
Yigit (2012)
  • İzmir Province
    • Bergama District
Yilmaz et al. (2007)
  • Kütahya Province
    • Gediz District
      • Murat Dagi
Aral (1989)
Aral (1989)
  • Manisa Province
    • Turgutlu District
Helvaci et al. (2013)
  • Uşak Province
    • Eşme District
Hanilçi +5 other references
Turkmenistan
 
Evseev (1995)
  • Lebap Region
    • Chardzhou
Pekov (1998)
UK
 
  • England
    • Bath and North East Somerset
      • East Harptree
Day (1999)
    • Cornwall
      • Carn Brea
        • Pool
Golley et al. (1995)
      • Linkinhorne
        • Minions
Golley et al. (1995)
      • St Hilary
    • Derbyshire
      • Derbyshire Dales District
        • Ashford in the Water
Ford et al. (1993)
Ford et al. (1993)
Ford et al. (1993)
Ford et al. (1993)
Ford et al. (1993)
        • Hartington Town Quarter
Ford et al. (1993) +1 other reference
        • Wirksworth
Ford et al. (1993)
    • East Sussex
      • Lewes
        • Newhaven
De Putter et al. (2000)
    • Northamptonshire
      • Wellingborough
        • Irchester
Hollingworth et al. (1950)
  • Scotland
    • Moray
Livingstone et al. (1983)
  • Wales
    • Gwynedd
      • Dolbenmaen
        • Prenteg
          • Fron Olau
USA
 
  • Alabama
    • Baldwin County
Cook et al. (1982)
    • Barbour County
Dean (1995)
    • Chambers County
Cook et al. (1982)
    • Covington County
Cook et al. (1982)
    • De Kalb County
Bates et al. (1950)
    • Henry County
      • Eufaula District (Eufala District)
Cook et al. (1982)
- (1917)
Cook et al. (1982)
USGS Bulletin 624 +1 other reference
  • Arizona
    • Cochise County
Nye (1968) +1 other reference
        • Hendricks Gulch
Galbraith (1959)
        • Queen Hill
          • Copper Queen Mine
Schwartz et al. (1932) +1 other reference
    • Gila County
      • Globe-Miami Mining District
        • Miami-Inspiration Mining District
          • Miami
            • Miami-Inspiration deposit
Freeport-McMoRan
      • Globe Hills Mining District
        • Globe
          • Old Dominion vein system
            • Buffalo Hill
MRDS database Dep. ID #10046353
      • Miami-Inspiration Mining District
        • Inspiration
          • Castle Dome area (Castle Dome Mine area; Pinto Valley Mine area)
Schwartz (1947) +2 other references
    • Graham County
      • Lone Star Mining District (Safford Mining District; Dos Pobres Mining District)
        • Sanchez
Robinson et al. (1966) +1 other reference
    • Greenlee County
Schwartz (1947) +2 other references
    • Pinal County
      • Florence Mining District (Blackwater Mining District; Black Rock Mining District)
        • Florence
Singer et al. (2005)
      • Scott Mountain
Jones et al. (1983) +1 other reference
      • Superior
Barnes et al. (1983)
Winant (2010) +1 other reference
  • Arkansas
Howard (2007)
Howard (1987) +1 other reference
      • Magnet Cove
V.C. Fryklund and D.F. Holbrook (1950)
Howard (2007)
    • Newton County
Smith (1988)
    • Polk County
      • Gilham
        • Porter Mountain
Rocks & Min.: 63:120.
Howard (1987) +1 other reference
    • Saline County
      • Arkansas Bauxite District
- (2005)
- (2005)
  • California
    • Amador County
      • Dew Drop
Carlson (1954) +2 other references
Allen (1929)
    • Imperial County
      • 4-S Ranch area
Kelley (1936) +2 other references
    • Inyo County
      • Inyo Mts (Inyo Range)
Calif. Div. of Mines & Geology Bull. #189 et al. (1966) +1 other reference
          • Cerro Gordo
with a section on the stratigraphy of ... +6 other references
    • Los Angeles County
      • Antelope Valley
        • Acton District
          • Acton
            • Red Rover Canyon
Sharp (1959) +2 other references
    • Mono County
      • Jordan Mining District
        • Copper Mountain
Clarke (1884) +2 other references
USGS Bull 220
    • San Diego County
      • Pala Mining District
        • Pala
Jahns et al. (1951)
Steve Hardinger (Dragon Minerals)
  • Colorado
    • Dolores County
      • Rico Mountains
Barnes (1985)
USGS Bull 220 +1 other reference
    • Eagle County
      • Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District)
        • Gilman
Eckel et al. (1997)
    • Grand County
Eckel et al. (1997)
    • Jefferson County
      • Golden Mining District
        • Golden
Eckel et al. (1997)
    • La Plata County
      • La Plata Mining District (California Mining District)
- (2005)
    • Mineral County
      • Creede Mining District
Kucera (2021)
      • Wagon Wheel Gap
Eckel et al. (1997)
    • Saguache County
      • Bonanza Mining District (Kerber Creek Mining District; Blake Mining District)
Eckel et al. (1997)
  • Connecticut
    • Litchfield County
      • Salisbury
Januzzi et al. (1976)
Januzzi et al. (1976)
    • Middlesex County
      • Portland
        • Collins Hill
          • Strickland pegmatite
Januzzi et al. (1976)
Wesleyan University collection +1 other reference
  • Georgia
    • Bartow County
Cook (1978)
      • Cartersville Mining District
Rocks & Min.: 64:185.
      • White
Rocks & Min.:64:185 +1 other reference
- (1917)
    • Chattooga County
- (2005)
      • Summerville
Cook (1978)
- (1917)
- (1917)
- (1917)
- (1917)
- (1917)
Hurst et al. (1964)
Schlanger (1964)
    • Hågat
      • Lamlan Ridge
Hathaway et al. (1965)
  • Hawaii
    • Kauai County
      • Kauai Island
- (2005)
- (2005)
- (2005)
- (2005)
    • Maui County
      • Maui Island
- (2005)
- (2005)
  • Idaho
    • Latah County
      • Bovill Area
- (2005)
Ream (2004) +2 other references
    • Washington County
      • Weiser Mining District
- (1956)
USGS +1 other reference
...
Erd et al. (1960)
Roland Schmidt Collection--Littleton
Callaghan (1948)
...
...
  • Maine
    • Oxford County
      • Hebron
        • Mount Rubellite
USGS Bull 445
      • Paris
King et al. (1994)
  • Maryland
    • Baltimore City
Maryland Geologic Survey (1898)
  • Massachusetts
    • Hampshire County
      • Goshen
Shaub et al. (1954)
  • Michigan
    • Marquette County
      • Richmond Township
        • Palmer
- (1940)
Heinrich et al. (2004)
  • Missouri
    • Franklin County
      • Stanton
Sherwood et al. (1998)
    • Phelps County
Sherwood et al. (1998)
  • Montana
    • Beaverhead County
      • Argenta Mining District
- (2005)
    • Granite County
      • Porters Corner
- (2005)
    • Jefferson County
      • Whitehall Mining District (Cardwell Mining District)
Gnanou (2018)
Gnanou (2018)
        • Golden Sunlight Mine
Gnanou (2018)
    • Lewis and Clark County
      • Seven-Up Pete Mining District
Schubert (2017)
    • Silver Bow County
Guilbert and Zeihen +2 other references
  • Nevada
    • Clark County
      • Spring Mountains
        • Goodsprings Mining District
Longwell et al. (1965)
      • Virgin Mountains
Castor et al. (2004)
    • Douglas County
      • Buckskin Range
        • Buckskin Mining District (Smith Valley Mining District)
Gibson (1987)
    • Elko County
      • Carlin Mining District
Castor et al. (2004)
Castor et al. (2004)
LaPointe et al. (199)
LaPointe et al. (199)
USGS Bull 741 +1 other reference
LaPointe et al. (199)
LaPointe et al. (199)
- (2005)
USGS Open-File Report 76-56
- (2005)
LaPointe et al. (199)
    • Esmeralda County
Castor et al. (2004)
      • Goldfield Mining District
- (2005)
    • Eureka County
      • Carlin Trend
        • Maggie Creek Mining Subdistrict
Newmont Mining Corporation
- (2005)
      • Lynn Mining District
Economic Geology (1996)
Barrick Gold Corporation
    • Lander County
      • Battle Mountain Mining District
Moore-Roth (2012)
Castor et al. (2004)
    • Lincoln County
- (2005)
    • Lyon County
Vikre et al. (1994)
      • Talapoosa Mining District
- (2005)
    • Mineral County
      • Fitting Mining District
Ross (1961)
      • Toquima Range
        • Barcelona Mining District (Spanish Belt Mining District)
- (2005)
    • Nye County
      • Bare Mountain
        • Bare Mountain Mining District (Fluorine Mining District)
- (2005)
      • Lodi Hills
        • Lodi Mining District
          • Granite camp
Castor et al. (2004)
      • Toquima Range
        • Manhattan Mining District
Ferguson (1924) +1 other reference
Kleinhampl et al. (1984)
    • Storey County
      • Comstock Mining District
        • Virginia City
          • Comstock Lode
Castor et al. (2004)
    • Washoe County
      • Geiger grade
Castor et al. (2004)
      • Sand Pass Mining District
Castor et al. (2004)
- (2005)
    • White Pine County
      • Robinson Mining District
        • Liberty pit
- (1976)
- (1976)
        • Tripp-Veteran pit
- (1976)
      • White Pine Mining District
- (2005)
  • New Mexico
    • Catron County
      • Mogollon Mountains
Northrop et al. (1996)
    • Doña Ana County
      • Franklin Mountains
        • Northern Franklin Mountains Mining District
New Mexico Geology v. 25
    • Eddy County
      • Carlsbad Caverns National Park
Northrop et al. (1996)
Northrop et al. (1996)
    • Grant County
Northrop et al. (1996)
      • Big Burro Mountains
        • Black Hawk Mining District
Northrop et al. (1996)
Northrop et al. (1996)
        • Tyrone Area
Gillerman (1964)
USGS Prof Paper 973F +1 other reference
Gillerman (1964)
Northrop et al. (1996)
        • Vanadium
Lasky et al. (1930) +1 other reference
Northrop et al. (1996) +1 other reference
      • Georgetown Mining District
        • San Lorenzo
Hanson (1994)
Northrop et al. (1996)
Northrop et al. (1996)
        • Santa Rita
- (2005)
    • McKinley County
Northrop et al. (1996)
    • Santa Fe County
Northrop et al. (1996)
    • Sierra County
Northrop et al. (1996)
Northrop et al. (1996)
    • Socorro County
Gibbs (1989)
Loughlin et al. (1942) +1 other reference
Gibbs (1989)
    • Union County
Northrop et al. (1996)
  • North Carolina
Genth (1891) +1 other reference
      • Ingalls
- (n.d.) +1 other reference
    • Buncombe County
Mineral Commodity Files
      • Buncombe Mining District
- (2005)
    • Burke County
Genth (1891) +1 other reference
Charles E.Hunter and Lewis J.Hash
Clarence S. Ross and Paul F Kerr (1934)
Bates et al. (1950)
Bates et al. (1950)
Sand (1954) +1 other reference
Charles E.Hunter and Lewis J.Hash
Horton et al. (1981)
Sand (1956)
Genth et al. (1881)
Genth (1891) +1 other reference
Sand (1954) +1 other reference
- (n.d.)
- (n.d.)
Bates et al. (1950)
Genth (1891) +1 other reference
Sand (1954)
      • Cowee Valley
        • Ellijay Mining District
          • Franklin
Clays and Clay Minerals
Genth (1891)
Mineral Commodity Files
Mineral Commodity Files
Clarence S. Ross and Paul F Kerr (1934)
      • Spruce Pine
Johnson (1990)
Genth (1891) +1 other reference
Sand (1954)
Mineral Commodity Files
Genth (1891)
      • Celo
Sand (1954) +1 other reference
      • Day Book
Mineral Commodity Files
Mineral Commodity Files
  • Oregon
    • Clackamas County
- (2005)
    • Marion County
- (2005)
      • Santiam Mining District (Elkhorn Mining District)
        • Breitenbush-Austin Hot Springs area
Bargar et al. (1997)
  • Puerto Rico
    • Comerio
USGS MRDS.
- (2005)
  • South Dakota
    • Fall River County
      • Edgemont Uranium Mining District
Roberts et al. (1965)
    • Pennington County
      • Keystone Mining District
        • Keystone
Smith et al. (2000)
  • Tennessee
Andrew R.Thomas and Haydn H. Murray (1989)
  • Texas
    • Duval County
      • Freer
R. Maxwell (1962)
Harvard Mineralogical Museum
    • Jeff Davis County
      • Davis Mountains
        • White Mountain
Smith (1991)
    • Real County
Bates et al. (1950)
    • Uvalde County
  • Utah
    • Beaver County
      • San Francisco Mountains
        • Squaw Peak
- (2005)
- (2005)
- (2005)
      • Star Range
        • White Mountain Mining District
- (2005)
- (2005)
- (2005)
- (2005)
    • Box Elder County
Bullock (1981) +1 other reference
Bullock (1981)
- (2005)
- (2005)
    • East Tintic Mountains
      • Tintic Mining District
        • Mammoth
USGS MRDS.
Min News 9:9 p6-8
- (2005)
USGS Bull 1142K +2 other references
    • Grand County
      • Little Grand Mining District
Williams (2017)
    • Juab County
Bullock (1981)
    • Millard County
      • Twin Peaks Mining District
- (2005)
    • Piute County
Bullock (1981)
      • Sevier Plateau Area
- (2005)
    • San Juan County
      • Red Canyon Mining District
Thaden et al. (1964)
    • Summit County
      • Park City Mining District
Bullock (1981)
    • Tooele County
      • Gold Hill Mining District (Clifton Mining District)
- (2005)
- (2005)
        • Gold Hill
          • Gold Hill Mine
Collected by and in the collection of ...
      • Mercur Mining District
- (2005)
      • Ophir Mining District
        • Ophir
In the collection of Alex Earl
      • Sheeprock Mountains
        • Blue Bell Mining District
Bullock (1981)
      • Stockton Mining District
- (2005)
      • Sunshine Mining District
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
    • Utah County
      • East Tintic Mining District
- (2005)
      • East Tintic Mountains
Bullock (1981)
      • Goshen
- (2005)
      • Lake Mountains Mining District
Bullock (1981) +1 other reference
- (2005)
Bullock (1981)
      • Manning
- (2005)
      • North Tintic Mining District
Lovering et al. (1960)
      • Sunshine Mining District
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
        • Fairfield
          • Clay Canyon
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
- (2005)
U.S. GEOLOGICAL SURVEY PROFESSIONAL ...
    • Wasatch County
Bullock (1981)
    • Washington County
      • Mineral Mountain Mining District
Bullock (1981)
- (2005)
    • Weber County
      • Ogden Canyon
- (2005)
  • Virginia
    • Albemarle County
      • Charlottesville
Dietrich (1990)
    • Amherst County
Dietrich (1990)
      • Piney River area
Dietrich (1990)
      • Roseland
Dietrich (1990)
    • Augusta County
Dietrich (1990)
    • Buckingham County
      • Farmville Mining District
        • Sprouses Corner
Dietrich (1990)
    • Campbell County
      • Alta Vista
Dietrich (1990)
Dietrich (1990)
    • Floyd County
      • Floyd
Dietrich (1990)
      • Willis
Dietrich (1990)
Dietrich (1990)
    • Nelson County
Dietrich (1990)
    • Prince Edward County
      • Farmville District
        • Madisonville
Dietrich (1990)
    • Prince William County
Dietrich (1990)
    • Rappahannock County
      • Woodville
        • Red Oak Mountain
Dietrich (1990)
    • Rockbridge County
      • Natural Bridge Station
Dietrich (1990)
    • Smyth County
      • Marion
Dietrich (1990)
  • Washington
    • Whatcom County
      • Sisters Mining District
Valentine et al. (1960) +1 other reference
  • Wisconsin
    • Dodge County
      • Iron Ridge Mining District (Neda Iron Mining District)
Hawley (1934)
    • Jackson County
Klemic et al. (1972) +1 other reference
  • Wyoming
    • Sweetwater County
      • Rock Springs
- (2005)
Uzbekistan
 
  • Sirdaryo
Mirzaev et al. (2004)
  • Tashkent
    • Piskent District
Eilu (2003)
Eilu (2003)
Vietnam
 
  • Phú Thọ Province
    • Thanh Son District
      • Thạch Khoán
Bac et al. (2018)
  • Tuyên Quang Province
    • Na Hang District
B. Fojt & I. Kusinir (2001)
Zimbabwe
 
  • Midlands
    • Gokwe North District
Vetter et al. (1999) +1 other reference
Mars
 
  • Syrtis Major quadrangle
Ollila et al. (2026)
  • Valles Marineris
Gurgurewicz J. (Valles Marineris, Mars)
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