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Penroseite

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Richard A. F. Penrose Jr.
Formula:
(Ni,Co,Cu)Se2
Colour:
Steel-gray
Lustre:
Metallic
Hardness:
2½ - 3
Specific Gravity:
6.58 - 6.74
Crystal System:
Isometric
Member of:
Name:
Named in honor of Richard Alexander Fullerton Penrose Jr. (17 December 1863, Philadelphia, Pennsylvania, USA - 31 July 1931), American mining geologist. He worked for a period for the United States Geological Survey (including early work on Cripple Creek, Colorado), was a mining consultant, mine owner, professor at the University of Chicago, editor for the Journal of Geology, President of the Academy of Natural Sciences of Philadelphia, first President of the Society of Economic Geologists, and president of the Geological Society of America. He funded Penrose medals for those last two societies. He was inducted into the National Mining Hall of Fame in 2006.

See Redwood, S.D. (2003) A case can be made that Penroseite should be called Blockite
Hide all sections | Show all sections

Classification of PenroseiteHide

Approved, 'Grandfathered' (first described prior to 1959)
2.EB.05a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
2.12.1.4

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.11.19

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni

Physical Properties of PenroseiteHide

Metallic
Transparency:
Opaque
Comment:
quickly tarnishes
Colour:
Steel-gray
Streak:
black
Hardness:
2½ - 3 on Mohs scale
Hardness:
VHN100=500 - 583 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {001}; distinct on {011}
Fracture:
Sub-Conchoidal
Density:
6.58 - 6.74 g/cm3 (Measured)    6.7 g/cm3 (Calculated)

Chemical Properties of PenroseiteHide

Formula:
(Ni,Co,Cu)Se2
IMA Formula:
NiSe2
Common Impurities:
Ag,Hg,Pb,Fe,S

Crystallography of PenroseiteHide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Pa3
Setting:
Pa3
Cell Parameters:
a = 5.991 Å
Unit Cell V:
215.03 ų (Calculated from Unit Cell)
Z:
4
Morphology:
reniform masses with radiating columnar structure

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.68 (100)
2.45 (100)
1.806 (90)
1.599 (40)
3.02 (30)
1.662 (30)
1.151 (30)

Type Occurrence of PenroseiteHide

Place of Conservation of Type Material:
The Natural History Museum, London, England, 1926,1; Harvard University, Cambridge, Massachusetts, 87472; National Museum of Natural History, Washington, D.C., USA, 95302, R7247.
Geological Setting of Type Material:
hydrothermal veins
Associated Minerals at Type Locality:

Synonyms of PenroseiteHide

Other Language Names for PenroseiteHide

Simplified Chinese:硒铜镍矿
Traditional Chinese:硒銅鎳礦

Varieties of PenroseiteHide

Cobaltoan Penroseite
Unnamed (Cubic NiSe2)The phase was identified by Franz and Wetzenstein ("Natuerliches kubisches NiSe2 von Caracoles, Bolivien," Naturwissenschaften, 72, 655-656.) by the similarity of its PXRD pattern to that of JCPDS 11-552. The authors state it is optically indistinguishabl...

Relationship of Penroseite to other SpeciesHide

Member of:
Other Members of this group:
AurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
CattieriteCoS2Iso. m3 (2/m 3) : Pa3
DzharkeniteFeSe2Iso.
ErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
FukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
GaotaiiteIr3Te8Iso.
GeversitePtSb2Iso. m3 (2/m 3) : Pa3
HaueriteMnS2Iso. m3 (2/m 3) : Pa3
InsizwaitePt(Bi,Sb)2
Krut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
LauriteRuS2Iso. m3 (2/m 3) : Pa3
PyriteFeS2Iso. m3 (2/m 3) : Pa3
SperrylitePtAs2Iso. m3 (2/m 3) : Pa3
TrogtaliteCoSe2
VaesiteNiS2Iso. m3 (2/m 3) : Pa3
Villamaninite(Cu,Ni,Co,Fe)S2

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chalcomenite2 photos of Penroseite associated with Chalcomenite on mindat.org.
Clinochalcomenite2 photos of Penroseite associated with Clinochalcomenite on mindat.org.
Clausthalite1 photo of Penroseite associated with Clausthalite on mindat.org.
Gold1 photo of Penroseite associated with Gold on mindat.org.
Tyrrellite1 photo of Penroseite associated with Tyrrellite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aInsizwaitePt(Bi,Sb)2
2.EB.05aKrut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aTrogtaliteCoSe2
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.05aVillamaninite(Cu,Ni,Co,Fe)S2
2.EB.05aDzharkeniteFeSe2Iso.
2.EB.05aGaotaiiteIr3Te8Iso.
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMattagamiteCoTe2Orth.
2.EB.10eParacostibiteCoSbSOrth.
2.EB.10ePararammelsbergiteNiAs2Orth.
2.EB.10fOeniteCoSbAsOrth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15aLöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aNisbiteNiSb2Orth.
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15cPaxiteCuAs2Mon.
2.EB.15aRammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15bSeinäjokite(Fe,Ni)(Sb,As)2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso.
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25KrutoviteNiAs2Iso.
2.EB.25MaslovitePtBiTe
2.EB.25MicheneritePdBiTe
2.EB.25PadmaitePdBiSeIso.
2.EB.25PlatarsitePtAsSIso.
2.EB.25TestibiopalladitePdTe(Sb,Te)Iso.
2.EB.25TolovkiteIrSbSIso.
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25Willyamite(Co,Ni)SbS
2.EB.25ChangchengiteIrBiSIso.
2.EB.25MayingiteIrBiTeIso.
2.EB.25Hollingsworthite(Rh,Pt,Pd)AsS
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet.
2.EB.35RheniiteReS2Tric.

Related Minerals - Dana Grouping (8th Ed.)Hide

2.12.1.1PyriteFeS2Iso. m3 (2/m 3) : Pa3
2.12.1.2VaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.12.1.3CattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.12.1.5TrogtaliteCoSe2
2.12.1.6Villamaninite(Cu,Ni,Co,Fe)S2
2.12.1.7FukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.12.1.8Krut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
2.12.1.9HaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.12.1.10LauriteRuS2Iso. m3 (2/m 3) : Pa3
2.12.1.11AurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.12.1.12KrutoviteNiAs2Iso.
2.12.1.13SperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.12.1.14GeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.12.1.15InsizwaitePt(Bi,Sb)2
2.12.1.16ErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.12.1.17DzharkeniteFeSe2Iso.
2.12.1.18GaotaiiteIr3Te8Iso.
2.12.1.19MayingiteIrBiTeIso.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.11.1HeazlewooditeNi3S2Trig. 3 2 : R3 2
3.11.2Godlevskite(Ni,Fe)9S8Orth. 2 2 2 : C2 2 2
3.11.3MilleriteNiSTrig. 3m : R3m
3.11.4PolydymiteNi2+Ni3+2S4Iso.
3.11.5VaesiteNiS2Iso. m3 (2/m 3) : Pa3
3.11.6ShanditeNi3Pb2S2Trig.
3.11.7DonharrisiteNi3HgS3Mon. 2/m : B2/m
3.11.8ViolariteFe2+Ni3+2S4Iso.
3.11.9Pentlandite(FexNiy)Σ9S8Iso. m3m (4/m 3 2/m) : Fm3m
3.11.10Bravoite(Fe,Ni)S2Iso. m3 (2/m 3) : Pa3
3.11.11SiegeniteCoNi2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.12FletcheriteCu(Ni,Co)2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.13Villamaninite(Cu,Ni,Co,Fe)S2
3.11.14Mäkineniteγ-NiSeTrig.
3.11.15Sederholmitebeta-NiSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.11.16TrüstedtiteNi3Se4Iso.
3.11.17WilkmaniteNi3Se4Mon.
3.11.18KulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.20TyrrelliteCu(Co3+,Ni3+)2Se4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.21ImgreiteNiTe (?)Hex.
3.11.22MeloniteNiTe2Trig.
3.11.23KitkaiteNiTeSeTrig.
3.11.24Dienerite
3.11.25OrceliteNi5-xAs2, x ~ 0.25Hex. 6mm : P63mc
3.11.26MaucheriteNi11As8Tet. 4 2 2 : P41 21 2
3.11.27NickelineNiAsHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
3.11.28RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.29PararammelsbergiteNiAs2Orth.
3.11.30Nickelskutterudite(Ni,Co,Fe)As3Iso. m3 (2/m 3) : Im3
3.11.31OregoniteNi2FeAs2Hex.
3.11.32Westerveldite(Fe,Ni,Co)AsOrth.
3.11.33Langisite(Co,Ni)AsHex. 6 : P63
3.11.34GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
3.11.35JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
3.11.36BreithauptiteNiSbHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.11.38UllmanniteNiSbSIso. 2 3 : P21 3
3.11.39Willyamite(Co,Ni)SbS

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.

References for PenroseiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gordon, S.G. (1926) Ac. Sc. Philadelphia, Proc.: 77: 317.
Gordon, S.G. (1926) Proceedings of societies: Penroseite and trudellite, two new minerals. American Mineralogist: 11: 39-43.
Herzenberg, R., Ahlfeld, F. (1935) Blockit, ein neues seienerz aus Bolivien. Zentralblatt für Mineralogie, Geologie und Paläontologie: 6: 277-279.
Bannister, F.A., Hey, M.H. (1937) The identity of penroseite and blockite. American Mineralogist: 22: 319-324.
Palache, C., Berman, H., Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 294-296.
Redwood, S.D. (2003) The Pacajake Selenium Mine, Potosi, Bolivia. Mineralogical Record: 34(5): 339-357. The story of Blockite and Penroseite is told on pages 352-354

Internet Links for PenroseiteHide

Localities for PenroseiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Bolivia
 
  • Potosí Department
    • Antonio Quijarro Province
[MinRec 21:133]
    • Chayanta Province
      • Pakajake Canyon (Pacajake Canyon)
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 635; Gordon, S. (1926) Penroseite and Trudellite: two new minerals. Proceedings Of The Academy Of Natural Sciences Of Philadelphia. 77, 317-324. Hurlbut, C.S., Aristarain, L.F. (1969) Olsacherite Pb₂(SeO₄)(SO₄), A New Mineral from Bolivia. The American Mineralogist. Vol.5, November-December, pp. 1519-1527. Livingstone, A., Jackson, B., Davidson, P.J. (1984) Grimaldiite, CrOOH, a second occurrence, from the Hiaca Mine, Colquechaca, Bolivia. Mineralogical Magazine, December 1984, Vol.48, pp. 560-562.
Canada
 
  • Nova Scotia
    • Hants Co.
      • Walton
Boyle, R.W., Jambor, J.L. (1966) Mineralogy, Geochemistry and Origin of the Magnet Cove Barite-Sulphide Deposit, Walton, N.S. Canadian Mining and Metallurgical Bulletin: 59(654): 1209-1228.
China
 
  • Inner Mongolia Autonomous Region
    • Alxa League (Alashan Prefecture)
      • Alxa Right Banner (Alashan Youqi)
Jiayong Pan, Chengdong Liu, Guolin Guo, Anping Chen, Fazheng Chen, Zhaobin Yan, Yiping Chen, and Rengui Wu (2009): Acta Mineralogica Sinica 29(1), 44-48
  • Sichuan Province
    • Ngawa Autonomous Prefecture (Aba Autonomous Prefecture)
      • Zoigê Co. (Ruo'ergai Co.)
Liu Jia-jun, Liu Xian-fan, Ling Hong-fei, Liu Jian-ming, and Lu Wen-quan (2000): Geological Journal of China Universities 6(2), 210-214.
Democratic Republic of the Congo
 
  • Katanga (Shaba)
    • Kambove District
      • Shinkolobwe
http://edit.africamuseum.be/geco_website/pdf/Shinkolobwe.pdf
Finland
 
  • Northern Finland Region
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Econ Geol (1997) 92:468-484
Am Min 50:581-586
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Saint-Amant-Tallende
        • Olloix
Patrice Queneau Collection
Germany
 
  • Bavaria
    • Upper Palatinate
Seeliger, E. & Strunz, H. (1965): Erzpetrographie der Uranmineralien von Wölsendorf. II. Brannerit, Lermontovit(?), Selen und Selenide, Ni- and Bi-Begleitmineralien etc. Neues Jahrbuch für Mineralogie, Abhandlungen 103, 163-178.
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Lower Saxony
    • Harz
      • Lautenthal
Wittern: "Mineralfundorte in Deutschland", 2001
  • Rhineland-Palatinate
    • Siegerland
      • Niederfischbach
Schnorrer-Köhler (198); Weiss: "Mineralfundstellen, Deutschland West", 1990; Henrich, J. M. (2010): Penroseit von der Grube Fischbacherwerk bei Niederfischbach. Mineralien-Welt 21 (3), 14-15.
  • Saxony-Anhalt
    • Harz
Wittern: "Mineralfundorte in Deutschland", 2001
Romania
 
  • Suceava Co.
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
Spain
 
  • Castile and Leon
    • León
      • Cármenes (Villamanín)
        • Villanueva de Pontedo
Econ Geol (1997) 92:468-484
UK
 
  • England
    • Devon
      • South Devon
        • Torquay
[Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
Mineral and/or Locality  
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