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⇱ Uranocircite: Mineral information, data and localities.

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Uranocircite

A valid IMA mineral species - grandfathered
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About UranocirciteHide

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Formula:
Ba(UO2)2(PO4)2 · 10H2O
Colour:
Yellow-green, yellow; pale canary-yellow in transmitted light.
Lustre:
Pearly
Hardness:
2 - 2½
Specific Gravity:
3.46
Crystal System:
Tetragonal
Member of:
Name:
The name reflects its uranium content and its discovery locality, Falkenstein (Falcon's Stone) - the Greek κίρκος for "CIRCes" meaning "falcon." It was renamed to uranocircite-II in 1963, but reverted back to uranocircite in 2022.
Autunite Group.

Dehydrates rapidly in dry atmospheres at normal temperature to metauranocircite (as metauranocircite-I in Walenta, 1963).


Unique IdentifiersHide

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Mindat ID:
4105
Long-form identifier:
mindat:1:1:4105:4

Similar NamesHide

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Uranocircite IBa(UO2)2(PO4)2 · 12H2O

Classification of UranocirciteHide

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👁 00572780017683530272384.jpg
The autunite-type sheet

The autunite-type sheet found in members of the autunite group.

IMA Classification of UranocirciteHide

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Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Renamed by the IMA
8.EB.05

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.3.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
19.11.22

19 : Phosphates
11 : Phosphates of U

Mineral SymbolsHide

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

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

Physical Properties of UranocirciteHide

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Pearly
Transparency:
Transparent, Translucent
Comment:
Lustre pearly on cleavage {001}.
Colour:
Yellow-green, yellow; pale canary-yellow in transmitted light.
Hardness:
2 - 2½ on Mohs scale
Cleavage:
Perfect
Perfect on {001}; distinct on {100} {010}
Density:
3.46 g/cm3 (Measured)    

Optical Data of UranocirciteHide

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Type:
Biaxial (-)
RI values:
nα = 1.574 nβ = 1.583 nγ = 1.588
2V:
Measured: 70° , Calculated: 72°
Max. Birefringence:
δ = 0.014
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.

Surface Relief:
Moderate
Dispersion:
none
Pleochroism:
Weak
Comments:
X = Colourless
Y = Z = Pale canary yellow
Comments:
Exhibits sets of twin lamellae parallel to {100} and {010}. The biaxial material, upon heating to 100° - 150°, transitions to uniaxial with the accompanying loss of water to the dihydrate.

Chemistry of UranocirciteHide

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Mindat Formula:
Ba(UO2)2(PO4)2 · 10H2O
Element Weights:
Element% weight
U45.448 %
O33.603 %
Ba13.110 %
P5.914 %
H1.925 %

Calculated from ideal end-member formula.

Crystallography of UranocirciteHide

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Crystal System:
Tetragonal
Cell Parameters:
a = 7.01 Å, c = 20.46 Å
Ratio:
a:c = 1 : 2.919
Unit Cell V:
1,005.41 ų (Calculated from Unit Cell)
Morphology:
Thin tabular crystals.
Twinning:
Twin lamellae parallel to {100} and {010}.
Comment:
Interpreted to be isostructural with heinrichite: monoclinic, space group P2/c, a 7.01, b 6.99, c 21.2 .ANG., beta 103.9°, V 1008.4 A3 (Locock et al., 2005)

Epitaxial Relationships of UranocirciteHide

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Epitaxial Minerals:
'Autunite'Ca(UO2)2(PO4)2 · 10-12H2O
'Torbernite'Cu(UO2)2(PO4)2 · 12H2O
Epitaxy Comments:
Occurs in parallel growths.

Geological EnvironmentHide

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Paragenetic Mode(s):
Geological Setting:
Secondary uranium mineral

Type Occurrence of UranocirciteHide

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Synonyms of UranocirciteHide

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Other Language Names for UranocirciteHide

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Relationship of Uranocircite to other SpeciesHide

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Member of:
Other Members of Autunite Group:
AutuniteCa(UO2)2(PO4)2 · 10-12H2OOrth. mmm(2/m2/m2/m) : Pnma
BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m : P2/b
HydronováčekiteMg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
NováčekiteMg(UO2)2(AsO4)2 · 10H2OMon. 2/m
RauchiteNi(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m
TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm
UranospiniteCa(UO2)2(AsO4)2 · 10H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm

Common AssociatesHide

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Associations Based on Photo Data:
11 photos of Uranocircite associated with QuartzSiO2
11 photos of Uranocircite associated with 'Smoky Quartz'SiO2
6 photos of Uranocircite associated with FluoriteCaF2
5 photos of Uranocircite associated with OrthoclaseK(AlSi3O8)
2 photos of Uranocircite associated with ZirconZr(SiO4)
2 photos of Uranocircite associated with TorberniteCu(UO2)2(PO4)2 · 12H2O
2 photos of Uranocircite associated with AutuniteCa(UO2)2(PO4)2 · 10-12H2O
2 photos of Uranocircite associated with UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
1 photo of Uranocircite associated with Studtite[(UO2)(O2)(H2O)2] · H2O
1 photo of Uranocircite associated with MetatorberniteCu(UO2)2(PO4)2 · 8H2O

Related Minerals - Strunz-mindat GroupingHide

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8.EB.Meta-autunite GroupA1-2(UO2)2(TO4)2 · 5-10H2O
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
8.EB.05UranospiniteCa(UO2)2(AsO4)2 · 10H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m : P2/b
8.EB.05KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
8.EB.05HydronováčekiteMg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
8.EB.05TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm
8.EB.05NováčekiteMg(UO2)2(AsO4)2 · 10H2OMon. 2/m
8.EB.05AutuniteCa(UO2)2(PO4)2 · 10-12H2OOrth. mmm(2/m2/m2/m) : Pnma
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m
8.EB.05Xiangjiangite(Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2OTet.
8.EB.10BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon. 2/m
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m)
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10MetauranocirciteBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OMon. 2 : P21
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm(4/m2/m2/m) : P4/ncc
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OTet.
8.EB.10'Pseudo-autunite'(H3O)4Ca2(UO2)2(PO4)4 · 5H2OOrth.
8.EB.15AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) : P4/ncc
8.EB.15Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.15Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.15NatrouranospiniteNa2(UO2)2(AsO4)2 · 5H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.15Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
8.EB.15Uramarsite(NH4)(UO2)(AsO4) · 3H2OTet. 4/mmm(4/m2/m2/m) : P4/mmm
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2OMon.
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
8.EB.25Uranospathite(Al,◻)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
8.EB.25ArsenuranospathiteAl(UO2)2(AsO4)2F · 20H2OOrth. mm2 : Pnn2
8.EB.30Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.
8.EB.35CoconinoiteFe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2OMon.
8.EB.40RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon. 2/m : B2/b
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
8.EB.55ArsenosabugaliteH0.5Al0.5(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
8.EB.60Horákite(Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2OMon. 2/m : B2/b

RadioactivityHide

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Radioactivity:
Element % Content Activity (Bq/kg) Radiation Type
Uranium (U) 45.4480% 11,362,000 α, β, γ
Thorium (Th) 0.0000% 0 α, β, γ
Potassium (K) 0.0000% 0 β, γ

For comparison:

  • Banana: ~15 Bq per fruit
  • Granite: 1,000–3,000 Bq/kg
  • EU exemption limit: 10,000 Bq/kg

Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.

Interactive Simulator:

Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!

Activity: –

DistanceDose rateRisk
1 cm
10 cm
1 m

The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield

Fluorescence of UranocirciteHide

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Other InformationHide

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Notes:
Radioactive. Soluble in acids.
Health Risks:
Contains uranium. Wash hands after handling. Do not lick or ingest, do not breathe dust when breaking, trimming or otherwise modifying.

Internet Links for UranocirciteHide

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mindat.org URL:
https://www.mindat.org/min-4105.html
Please feel free to link to this page.

References for UranocirciteHide

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Reference List:

Localities for UranocirciteHide

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Showing 107 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Australia
  • Queensland
    • Cloncurry Shire
      • Rosebud Station
        • Mary Kathleen district
Sorrell (n.d.)
Austria
  • Lower Austria
    • Gmünd District
      • Großdietmanns
        • Unterlembach
Neschen (n.d.)
  • Styria
    • Weiz District
      • Rettenegg
        • Prinzkogel (Prinzenkogel)
Exel (1993)
Brazil
  • Minas Gerais
    • Conselheiro Pena
      • Barra do Cuieté
Bruno Gioia specimen +1 other reference
    • Malacacheta
Bulgaria
  • Sofia City Province
    • Stolichna Municipality
      • Buhovo
Kalaidjiev et al. (2009)
Palache et al. (1951)
China
  • Guangdong
    • Shaoguan
      • Wengyuan Co.
Dahlkamp (2009)
  • Hunan
    • Huaihua
      • Xupu Co.
National Geological Archives of China ...
    • Yiyang
      • Anhua Co.
National Geological Archives of China ...
  • Jiangxi
    • Ganzhou
      • Ningdu Co.
        • Taoshan Uranium ore field (Liueryilin Uranium ore field; Uranium ore field No. 6210)
Maozhong Min et al. (2005)
    • Jiujiang
      • Xiushui Co.
        • Xiushui Uranium ore field
Dahlkamp (2009)
Dahlkamp (2009)
Czech Republic
  • Karlovy Vary Region
    • Karlovy Vary District
Hloušek et al. (2002)
    • Sokolov District
      • Březová
M.E. Ciriotti
      • Krásno
        • Vysoký Kámen
Jirásek et al. (2016)
  • Plzeň Region
    • Klatovy District
      • Frymburk
        • Damětice
Pauliš P. et al. (Kutna Hora, issue 1)
    • Tachov District
      • Zadní Chodov
Pauliš P. et al. (Kutna Hora, issue 1)
  • South Bohemian Region
    • Jindřichův Hradec District
Pauliš P. et al. (Kutna Hora, issue 1)
  • South Moravian Region
    • Brno-Country District
      • Strhaře
Škácha et al. (2017)
DR Congo
  • Haut-Katanga
    • Kambove Territory
      • Shinkolobwe
Gauthier et al. (1989)
  • Tanganyika
Dewaele et al. (2016)
France
  • Auvergne-Rhône-Alpes
    • Allier
      • Vichy
        • Échassières
          • Montmins mining district
Cuchet et al. (2000)
    • Cantal
      • Saint-Flour
        • Jabrun
R. Pierrot
    • Haute-Loire
      • Le Puy-en-Velay
        • Bellevue-la-Montagne
  • Bourgogne-Franche-Comté
    • Nièvre
      • Château-Chinon
        • Dommartin
- (1998)
- (1998)
    • Saône-et-Loire
      • Charolles
        • Grury
OLLIC Pascal Collection +1 other reference
        • Issy-l'Evêque
J. Geffroy
        • Marly-sous-Issy
Asselborn (1983) +1 other reference
        • Neuvy-Grandchamp
- (1998)
  • Brittany
    • Côtes-d'Armor
      • Guingamp
Schillinger et al. (2001)
        • Saint-Gilles-Pligeaux
- (1998)
      • Lannion
        • Lannion
- (1998)
      • Saint-Brieuc
        • Trédaniel
- (1998)
    • Finistère
      • Brest
        • Bohars
Pierrot et al. (1973)
- (1998)
    • Morbihan
      • Pontivy
        • Berné
R. Pierrot
        • Guern
R. Pierrot
R. Pierrot
- (1998)
        • Lignol
- (1998)
        • Melrand
R. Pierrot
  • Nouvelle-Aquitaine
    • Corrèze
      • Ussel
        • Davignac
    • Creuse
      • Guéret
        • Guéret
    • Haute-Vienne
      • Bellac
        • Razès
Meisser et al. (2008)
      • Limoges
        • Saint-Sylvestre
- (1998)
  • Occitanie
    • Aveyron
      • Rodez
        • Entraygues-sur-Truyère
- (1998)
        • Florentin-la-Capelle
        • Golinhac
- (1998)
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Nice Arrondissement
        • Saint-Etienne-de-Tinée
          • Auron
R. Pierrot
    • Var
      • Draguignan
        • Fréjus
MAURY (S) +1 other reference
Gabon
  • Haut-Ogooué Province
    • Léboumbi-Leyou Department
      • Mounana
Lheur et al. (2001)
Germany
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Eisenbach
Weiß (1990)
      • Waldshut
        • St Blasien
          • Menzenschwand
Walenta (1992)
Walenta (1992)
  • Bavaria
    • Lower Bavaria
      • Freyung-Grafenau District
        • Waldkirchen
          • Oberfrauenwald
Habel et al. (1994)
      • Regen District
        • Lindberg
          • Pauliberg
www.mineralienatlas.de (n.d.)
    • Lower Franconia
      • Aschaffenburg District
        • Sailauf
          • Hartkoppe
Lorenz (2004)
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Waidhaus
          • Hagendorf
Dill et al. (2013)
      • Schwandorf District
        • Nabburg
          • Wölsenberg
collection H.J. Haas
        • Schwarzach bei Nabburg
          • Wölsendorf
Weiß (1990)
Bald +1 other reference
        • Stulln
Weiß (1990)
in the collection of Joachim Esche
Dill et al. (2010) +1 other reference
  • Saxony
    • Erzgebirgskreis
      • Bärenstein
        • Niederschlag
Martin et al. (1994)
      • Geyer
Wittern (2001)
      • Schneeberg
        • Neustädtel
Lapis 30 (7/8)
        • Rödergasse
Herrmann et al. (2007)
    • Vogtlandkreis
      • Bergen
Weisbach (1877) +2 other references
      • Neuensalz
        • Mechelgrün
Tröger (2006) +1 other reference
      • Theuma
Matt Wall
Wittern (2001)
Japan
  • Gifu Prefecture
    • Mizunami City
      • Tsukiyoshi uranium ore deposits
Hayashi & Nagashima (1965)
Madagascar
  • Melaky
    • Morafenobe District
      • Beravina
Behier (1959)
  • Vakinankaratra
    • Antsirabe II District
      • Vinaninkarena
        • Anjanamanjaka
Behier (1960)
Niger
  • Agadez
    • Arlit
Poland
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Gmina Stara Kamienica
        • Kopaniec
Mochnacka K. 1975: Mineralizacja skał ... +2 other references
Lis et al. (1986)
    • Lwówek Śląski County
      • Gmina Lubomierz
        • Radoniów
Syczewski et al. (2023)
Portugal
  • Coimbra
    • Tábua
      • Ázere e Covelo
LNEG - Laboratório Nacional de Energia ...
  • Guarda
    • Guarda
      • Arrifana
LNEG - Laboratório Nacional de Energia ...
      • João Antão
LNEG - Siorminp database information
    • Sabugal
      • Bendada
Palache et al. (1951)
  • Portalegre
    • Castelo de Vide
      • Nossa Senhora da Graça de Póvoa e Meadas
LNEG
    • Nisa
      • Nossa Senhora da Graça
        • Poio
LNEG/Siorminp database +1 other reference
  • Viseu
    • Mangualde
      • Mangualde (Mesquitela e Cunha Alta)
        • Cubos-Mesquitela-Mangualde area
Mineralien Atlas
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
Russia
  • Bashkortostan
    • Beloretsk district
Kovalev et al. (2017)
South Korea
  • Gyeonggi Province
Jeong et al. (1999)
Spain
  • Andalusia
    • Córdoba
Desor (07/2020)
      • Hornachuelos
        • Sierra Albarrana
          • El Cabril
Menor et al. (2010)
Tajikistan
  • Sughd
    • Kandjol ore field
Chernikov et al. (1997)
USA
  • Arizona
    • Coconino County
      • Cameron Mining District
Austin (1964) +1 other reference
    • Gila County
      • Sierra Ancha Mountains
        • Sierra Ancha Mining District
          • Asbestos Point (Asbestos Peak) area
            • Bull Canyon
Granger (1959)
            • Warm Spring Canyon
Granger (1959) +1 other reference
          • Greenback Peak area
Granger (1959)
  • California
    • Kern County
      • Piute Mountains
        • Weldon District
          • Rocky Point
Troxel et al. (1957) +1 other reference
  • Colorado
    • Saguache County
      • Cochetopa Mining District (Cochetopa Creek Mining District)
Eckel et al. (1997)
Eckel et al. (1997)
  • Montana
    • Jefferson County
      • Clancy-Lump Gulch Mining District
Meschter (1953) +3 other references
  • Nevada
    • Lander County
      • Reese River Mining District
Jensen et al. (2012)
  • New Hampshire
    • Grafton County
Januzzi et al. (1976)
  • South Dakota
    • Lawrence County
      • Bald Mountain Mining District (Portland Mining District)
        • Annie Creek
Tom Loomis website
    • Pennington County
USGS: Geological Survey Circular 359
  • Texas
    • Oldham County
Page et al. (1956) +3 other references
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