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Montgomeryite

A valid IMA mineral species - grandfathered
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04325070017133971259621.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
09682390014956049227933.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
02054480014956464431057.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
07877340017062107305217.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
07586950014946996453044.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
04652200014947324241849.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
09456650017133971256256.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
07586950014946996453044.jpg
Montgomeryite

Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
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About MontgomeryiteHide

09078020014947416414228.jpg
Arthur Montgomery
Formula:
Ca4MgAl4(PO4)6(OH)4 · 12H2O
Colour:
Dark green to light green, colourless, red, yellow
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.53
Crystal System:
Monoclinic
Name:
After Arthur Montgomery (1909-1999), American Mineralogist, Professor of Geology, Lafayette College, Easton, Pennsylvania, USA, who collected the first specimens.
Isostructural with:
Kingsmountite
The Mg analogue of kingsmountite and fanfaniite.

A secondary mineral in sedimentary phosphate nodules and as a late-stage mineral in highly oxidized phosphate nodules in granitic pegmatite.




Unique IdentifiersHide

Mindat ID:
2767
Long-form identifier:
mindat:1:1:2767:6
GUID
(UUID V4):
064ab492-5287-4042-befc-4b4e2ae5cdc3

IMA Classification of MontgomeryiteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)

Classification of MontgomeryiteHide

Strunz-mindat (2024):
8.DH.25

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
Dana 8th ed.:
42.11.8.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:
19.8.12

19 : Phosphates
8 : Phosphates of Al and other metals

Mineral SymbolsHide

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

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

Physical Properties of MontgomeryiteHide

Lustre:
Vitreous
Transparency:
Transparent, Translucent
Colour:
Dark green to light green, colourless, red, yellow
Comment:
Coloration may be zoned.
Hardness:
4 on Mohs scale
Cleavage:
Perfect
On {010}, perfect; on {100}, poor.
Density:
2.53 g/cm3 (Measured)    2.523 g/cm3 (Calculated)

Optical Data of MontgomeryiteHide

Type:
Biaxial (-)
RI values:
nα = 1.572 nβ = 1.578 nγ = 1.582
2V:
Measured: 75° , Calculated: 78°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r < v strong
Pleochroism:
Weak
Comments:
X = Colourless to pale green
Y = Z = Colourless

also, may exhibit:

X = Light orange-brown
Y = Pale magenta-pink
Z = Light orange-brown

Chemistry of MontgomeryiteHide

Mindat Formula:
Ca4MgAl4(PO4)6(OH)4 · 12H2O
Elements listed:
Al, Ca, H, Mg, O, P - search for minerals with similar chemistry

Crystallography of MontgomeryiteHide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Cell Parameters:
a = 10.02 Å, b = 24.12 Å, c = 6.24 Å
β = 91.55°
Ratio:
a:b:c = 0.415 : 1 : 0.259
Unit Cell V:
1,507.55 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals lathlike, flattened on {010} and elongated and striated along [001]; terminated by pyramids. {010} dominant, with many {hk0} vicinal prism forms. Commonly occur in subparallel growths in contact on {010}. Massive; as subparallel aggregates of coarse plates.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000410MontgomeryiteMoore P B, Araki T (1974) Montgomeryite, Ca4Mg(H2O)12[Al4(OH)4(PO4)6]:. Its crystal structure and relation to Vauxite, Fe2(H2O)4[Al4(OH)4(H2O)4(PO4)4].4H2O American Mineralogist 59 843-85019740293
0000486MontgomeryiteFanfani L, Nunzi A, Zanazzi P F, Zanzari A R (1976) Additional data on the crystal structure of montgomeryite American Mineralogist 61 12-1419760293
CIF Raw Data - click here to close

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
21 : Chemically precipitated carbonate, phosphate, iron formations
Geological Setting:
Granitic pegmatites

Type Occurrence of MontgomeryiteHide

Type Locality:
ⓘ Clay Canyon, Fairfield, Sunshine Mining District, Utah County, Utah, USA
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA: #95481.
Geological Setting of Type Material:
Phosphate nodules in sedmimentary rocks.
Associated Minerals at Type Locality:
WarditeVarisciteGordoniteEnglishiteCrandallite

Other Language Names for MontgomeryiteHide

Relationship of Montgomeryite to other SpeciesHide

Member of:
Montgomeryite Subgroup > Calcioferrite Group
Other Members of this group:
FanfaniiteCa4MnAl4(PO4)6(OH)4 · 12H2OMon. 2/m : B2/b
KingsmountiteCa3MnFeAl4(PO4)6(OH)4 · 12H2OTric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
45 photos of Montgomeryite associated with WhitlockiteCa9Mg(PO4)6(PO3OH)
39 photos of Montgomeryite associated with VarisciteAlPO4 · 2H2O
36 photos of Montgomeryite associated with TiptopiteK2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2O
35 photos of Montgomeryite associated with EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
32 photos of Montgomeryite associated with RoscheriteCa2Mn2+5Be4(PO4)6(OH)4 · 6H2O
32 photos of Montgomeryite associated with WarditeNaAl3(PO4)2(OH)4 · 2H2O
30 photos of Montgomeryite associated with CrandalliteCaAl3(PO4)(PO3OH)(OH)6
29 photos of Montgomeryite associated with RobertsiteCa2Mn3+3(PO4)3O2 · 3H2O
16 photos of Montgomeryite associated with MitridatiteCa2Fe3+3(PO4)3O2 · 3H2O
15 photos of Montgomeryite associated with FairfielditeCa2Mn2+(PO4)2 · 2H2O

Related Minerals - Strunz-mindat GroupingHide

8.DH.FerroberauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
8.DH.Rowleyite[Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl]Iso.
8.DH.Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2OMon. 2/m : P21/m
8.DH.Thebaite-(NH4)(NH4)3Al(C2O4)(PO3OH)2(H2O)Mon. 2/m : P21/b
8.DH.Dendoraite-(NH4)(NH4)2NaAl(C2O4)(PO3OH)2(H2O)2Mon. 2/m
8.DH.Whiteite-(MnMnMn)Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.Whiteite-(CaMnFe)CaMnFe2Al2(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.HochleitneriteMn2Ti3(PO4)4O2(H2O)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.RegeriteKFe6(PO4)4(OH)7(H2O)6 · 4H2OMon. 2/m : P21/b
8.DH.05MinyuliteKAl2(PO4)2F · 4H2OOrth. mm2 : Pba2
8.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon. 2/m
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15KeckiteCaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m : P2/b
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMg){(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaMnMn){Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(MnMnMg)MnMnMg2Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnMg)Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaFeMg)CaFe2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnFe)Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(CaMgMg)CaMg3Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnZn)Mn2+Mn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMn)NaMn2+(Mn2+Fe3+)Σ2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnZn)CaMn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.20Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
8.DH.25KingsmountiteCa3MnFeAl4(PO4)6(OH)4 · 12H2OTric. 1 : P1
8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
8.DH.25FanfaniiteCa4MnAl4(PO4)6(OH)4 · 12H2OMon. 2/m : B2/b
8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
8.DH.30RobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. m : Bb
8.DH.30Sailaufite(Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon. m : Bm
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OMon. m
8.DH.35Benyacarite(H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35Hydroxylbenyacarite(H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O Orth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35MacraeiteK(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2OMon. 2/m : P21/b
8.DH.35Sperlingite (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2OMon. 2/m : P21/b
8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m
8.DH.65GalliskiiteCa4Al2(PO4)2F8 · 5H2OTric. 1 : P1
8.DH.70JoteiteCa2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2OTric. 1 : P1
8.DH.75KampeliteBa6Mg3Sc8(PO4)12(OH)6 · 7H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.DH.80KapundaiteNaCaFe4(PO4)4(OH)3 · 5H2OTric. 1 : P1
8.DH.85VaniniiteCa2Mn2+3Mn3+2O2(AsO4)4 · 2H2OMon. 2/m : P21/b

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.

Internet Links for MontgomeryiteHide

References for MontgomeryiteHide

Localities for MontgomeryiteHide

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.

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.
Australia
 
Trueman (1965)
  • New South Wales
    • Westmoreland Co.
Podgson RE +1 other reference
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Pilkington et al. (1979)
    • Olary Province
      • Boolcoomatta Reserve (Boolcoomata Station)
  • Victoria
    • Moorabool Shire
      • Parwan
Birch et al. (1993)
  • Western Australia
    • Meekatharra Shire
      • Milgun Station
Mineralogical Magazine 39 (1974) +1 other reference
      • Woodlands Station
Nickel (2008)
Austria
 
  • Styria
    • Leoben District
      • Sankt Peter-Freienstein
Mitteilungen der Abteilung für Mineralogie am Landesmuseum Joanneum (1998)
Brazil
 
  • Minas Gerais
    • Itinga
      • Taquaral
Cassedanne et al. (1973)
Cape Verde
 
  • Barlavento Islands
Figueiredo +3 other references
France
 
  • Nouvelle-Aquitaine
    • Dordogne
      • Sarlat-la-Canéda
        • Cénac-et-Saint-Julien
Karkanas et al. (2002)
  • Occitanie
    • Pyrénées-Orientales
      • Perpignan
Lacroix (1910)
Quattropani et al. (1999) +1 other reference
Germany
 
  • Bavaria
    • Lower Bavaria
      • Regen District
        • Zwiesel
          • Rabenstein
Weiß (1990)
  • Hesse
    • Darmstadt
      • Bergstraße
        • Heppenheim
          • Kirschhausen
Wittern (2001)
      • Darmstadt-Dieburg
        • Messel
Liesegang et al. (2022)
    • Giessen Region
      • Lahn-Dill-Kreis
        • Lahnau
          • Waldgirmes
SEM-EDS and Raman Spectroscopy by Joy ...
Israel
 
  • Haifa District
    • Hof HaCarmel
Goldberg et al. (1975)
Weiner et al. (1993)
Italy
 
  • Sardinia
    • South Sardinia Province
Orlandi (2011)
  • Sicily
    • Trapani Province
      • Castellammare del Golfo
Vattano M. et al. (2013) +1 other reference
Kazakhstan
 
  • Turkistan Region
Bernard et al. (2004)
Mexico
 
  • Coahuila
    • Cuatro Ciénegas Municipality
      • Cuatro Ciénegas (Cuatrociénegas de Carranza; Venustiano Carranza)
        • Limestone caves
Forti (2006)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
FRANSOLET (1987)
  • Marrakesh-Safi Region
    • Rehamna Province
      • Sidi Bou Othmane Cercle
        • Jebilet Mtn (Djebilet Mtn)
          • Sidi Bou Othmane
Favreau (2012)
Namibia
 
  • Erongo Region
    • Dâures Constituency
von Bezing (2007)
Der Aufschluss 36:117-119
Portugal
 
  • Guarda
    • Sabugal
      • Bendada
Schnorrer-Köhler (1991)
  • Viseu
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
South Africa
 
  • Gauteng
    • West Rand District Municipality
      • Far West Rand
        • Western Sector
          • Carletonville
Martini (1978)
  • North West
    • Dr Kenneth Kaunda District Municipality
      • JB Marks Local Municipality
        • Ventersdorp
Martini (1978)
  • Western Cape
    • West Coast District Municipality
      • Cederberg Local Municipality
Miller et al. (2013)
Spain
 
  • Castile and Leon
    • Salamanca
      • Garcirrey
Christian Rewitzer collection
  • Catalonia
    • Barcelona
      • Baix Llobregat
Camprubí et al. (4)
Melgarejo et al. (1988)
Joan Rosell - RosellMinerals
Bareche (2005)
          • Gavà Mines (Can Tintorer Mines)
Díaz-Acha et al. (2022)
      • Vallès Occidental
        • Montcada i Reixac
Mineralogistes de Catalunya (1997)
  • Navarre
    • Esteríbar
      • Eugui
Calvo Rebollar (2015)
Sweden
 
  • Norrbotten County
    • Kiruna
      • Svappavaara
Thailand
 
  • Chiang Mai Province
Lenoble et al. (2006, September)
USA
 
  • Nevada
    • Elko County
Castor et al. (2004)
    • Esmeralda County
      • Candelaria Mining District (Columbus Mining District)
Collected by Dick Thomssen.
    • Humboldt County
      • Iron Point Mining District
        • Valmy
Silver Coin Mine. Compact Disc. Paul ...
      • Osgood Mountains
        • Potosi Mining District
Rocks & Minerals +2 other references
Castor et al. (2004)
Min News (1999)
    • Mineral County
      • Candelaria Mining District
Kampf et al. (2016)
        • Candelaria Silver Mine
Collected by Paul Adams. EDS and XRD ...
    • Nye County
      • Toquima Range
        • Northumberland Mining District
Castor et al. (2004)
    • Pershing County
      • Humboldt Range
        • Willard Mining District
Castor et al. (2004)
  • South Dakota
    • Custer County
      • Custer Mining District
        • Fourmile
Rocks & Minerals: 60: 117. +1 other reference
        • Pringle
          • Cicero Peak
Smith et al. (2000)
    • Lawrence County
      • Bald Mountain Mining District (Portland Mining District)
Loomis (2011)
    • Pennington County
      • Keystone Mining District
        • Keystone
Rocks & Minerals: 57: 160 &/or 60: 110 ...
  • Utah
    • Box Elder County
      • Utahlite Hill
Don Howard (1999)
    • Utah County
      • Sunshine Mining District
        • Fairfield
Palache et al. (1951) +1 other reference
Wilson (2010)
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