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Cherepanovite

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Formula:
RhAs
System:OrthorhombicColour:Gray-white
Hardness:6
Name:For V. A. Cherepanov (1927-1983)
This page provides mineralogical data about Cherepanovite.

Classification of Cherepanovite

IMA status:Approved
Strunz 8th edition ID:2/C.20-130
Nickel-Strunz 10th (pending) edition ID:2.CC.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
Dana 8th edition ID:2.8.17.2

2 : SULFIDES
8 : AmXp, with m:p = 1:1
Hey's CIM Ref.:3.12.11

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
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Type Occurrence of Cherepanovite

Type Locality:Placer deposit, Northern Pekul'nei River, Pekul'nei Range, Chukotskii Autonomous Okrug, Far-Eastern Region, Russia
Year of Discovery:1985
Geological Setting of type material:Placer platinum deposit derived from ultramafic massif in ophiolite belt.

Physical Properties of Cherepanovite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Gray-white
Streak:Grayish black
Hardness (Mohs):6
Hardness (Vickers):VHN50=726 - 754 kg/mm2
Cleavage:Distinct/Good
One distinct direction
Density (calculated):9.72 g/cm3

Crystallography of Cherepanovite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma {P21/n 21/m 21/a}
Space Group Setting:Pnma
Cell Parameters:a = 5.70(2) Å, b = 3.59(1) Å, c = 6.00(1) Å
Ratio:a:b:c = 1.588 : 1 : 1.671
Unit Cell Volume:V 122.78 ų (Calculated from Unit Cell)
Z:4
Morphology:Grains to 20 microns.

Optical Data of Cherepanovite

Type:Anisotropic
Anisotropism:Green to gray-brown
Colour in reflected light:White with an orange tint
Pleochroism:Weak
Comments:In yellow to pinkish hue and bluish white.

Chemical Properties of Cherepanovite

Formula:
RhAs
Essential elements:As, Rh
All elements listed in formula:As, Rh
Common Impurities:Ru,Pt,Ni

Relationship of Cherepanovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CC.UM2007-26-S:CuFeIrNiPtRh
(Ir,Cu,Ni,Pt,Rh,Fe)
 
9
S
 
11
2.CC.05Achavalite
(Fe,Cu)Se
2.CC.05Breithauptite
NiSb
2.CC.05Freboldite
CoSe
2.CC.05Kotulskite
Pd(Te,Bi)
 
1-2
2.CC.05Langisite
(Co,Ni)As
2.CC.05Nickeline
NiAs
2.CC.05Sederholmite
beta-NiSe
2.CC.05Sobolevskite
PdBi
2.CC.05Stumpflite
Pt(Sb,Bi)
2.CC.05Sudburyite
(Pd,Ni)Sb
2.CC.05Jaipurite
CoS
2.CC.05Zlatogorite
NiCuSb
 
2
2.CC.10Pyrrhotite
Fe
 
1-x
S (x = 0 to 0.17)
2.CC.10Smythite
(Fe,Ni)
 
3+x
S
 
4
(x=0-0.3)
2.CC.10Troilite
FeS
2.CC.15Modderite
(Co,Fe)As
2.CC.15Ruthenarsenite
(Ru,Ni)As
2.CC.15Westerveldite
(Fe,Ni,Co)As
2.CC.20Millerite
NiS
2.CC.20Mäkinenite
γ-NiSe
2.CC.20UM1990-38-S:CuFeIrNiPtRh
(Ir,Pt,Ni,Fe)S
2.CC.25Mackinawite
(Fe,Ni)
 
9
S
 
8
2.CC.30Hexatestibiopanickelite
(Pd,Ni)(Sb,Te)
2.CC.30Vavřínite
Ni
 
2
SbTe
 
2
2.CC.35aBraggite
(Pt,Pd,Ni)S
2.CC.35bCooperite
PtS
2.CC.35aVysotskite
(Pd,Ni)S
Related Minerals - Hey's Index Grouping:

- +
3.12.1Seinäjokite
(Fe,Ni)(Sb,As)
 
2
3.12.2Laurite
RuS
 
2
3.12.3Ruthenarsenite
(Ru,Ni)As
3.12.4Anduoite
(Ru,Os)As
 
2
3.12.5Ruarsite
(Ru,Os)AsS
3.12.6Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
3.12.7Rhodplumsite
Rh
 
3
Pb
 
2
S
 
2
3.12.8Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
3.12.9Konderite
Cu
 
3
Pb(Rh,Pt,Ir)
 
8
S
 
16
3.12.10Bowieite
(Rh,Ir,Pt)
 
2
S
 
3
3.12.12Hollingworthite
(Rh,Pt,Pd)AsS
3.12.13Vysotskite
(Pd,Ni)S
3.12.14Vasilite
(Pd,Cu)
 
16
(S,Te)
 
7
3.12.15Palladseite
Pd
 
17
Se
 
15
3.12.16Oosterboschite
(Pd,Cu)
 
7
Se
 
5
3.12.17Telluropalladinite
Pd
 
9
Te
 
4
3.12.18Temagamite
Pd
 
3
HgTe
 
3
3.12.19Sopcheite
Ag
 
4
Pd
 
3
Te
 
4
3.12.20Michenerite
PdBiTe
3.12.21Kotulskite
Pd(Te,Bi)
 
1-2
3.12.22Telargpalite
(Pd,Ag)
 
3
(Te,Bi)
3.12.23Merenskyite
(Pd,Pt)(Te,Bi)
 
2
3.12.24Palladoarsenide
Pd
 
2
As
3.12.25Stillwaterite
Pd
 
8
As
 
3
3.12.26Atheneite
Pd
 
2
As
 
0.75
Hg
 
0.25
3.12.27Majakite
PdNiAs
3.12.28Palarstanide
Pd
 
8
(As,Sn)
 
3
3.12.29Arsenopalladinite
Pd
 
8
(As,Sb)
 
3
3.12.30Vincentite
Pd
 
3
As
3.12.31Palladobismutharsenide
Pd
 
2
(As,Bi)
3.12.32Stibiopalladinite
Pd
 
5
Sb
 
2
3.12.33Hexatestibiopanickelite
(Pd,Ni)(Sb,Te)
3.12.34Sudburyite
(Pd,Ni)Sb
3.12.35Testibiopalladite
PdTe(Sb,Te)
3.12.36Borovskite
Pd
 
3
SbTe
 
4
3.12.37Isomertieite
Pd
 
11
Sb
 
2
As
 
2
3.12.38Mertieite-I
Pd
 
11
(Sb,As)
 
4
3.12.39Mertieite-II
Pd
 
8
(Sb,As)
 
3
3.12.40Sobolevskite
PdBi
3.12.41Froodite
α-PdBi
 
2
3.12.42Polarite
Pd(Bi,Pb)
3.12.43Urvantsevite
Pd(Bi,Pb)
 
2
3.12.44Cooperite
PtS
3.12.45Braggite
(Pt,Pd,Ni)S
3.12.46Kharaelakhite
(Cu,Pt,Pb,Fe,Ni)
 
9
S
 
8
3.12.47Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
3.12.48Moncheite
(Pt,Pd)(Te,Bi)
 
2
3.12.49Maslovite
PtBiTe
3.12.50Sperrylite
PtAs
 
2
3.12.51Platarsite
(Pt,Rh,Ru)AsS
3.12.52Geversite
PtSb
 
2
3.12.53Daomanite
CuPtAsS
 
2
3.12.54Genkinite
(Pt,Pd,Rh)
 
4
Sb
 
3
3.12.55Stumpflite
Pt(Sb,Bi)
3.12.56Insizwaite
Pt(Bi,Sb)
 
2
3.12.57Erlichmanite
OsS
 
2
3.12.58Omeiite
(Os,Ru)As
 
2
3.12.59Osarsite
(Os,Ru)AsS
3.12.60Kashinite
(Ir,Rh)
 
2
S
 
3
3.12.61Inaglyite
Cu
 
3
Pb(Ir,Pt)
 
8
S
 
16
3.12.62Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
3.12.63Iridarsenite
(Ir,Ru)As
 
2
3.12.64Irarsite
(Ir,Ru,Rh,Pt)AsS
3.12.65Tolovkite
IrSbS

Other Names for Cherepanovite

Synonyms:
IMA1984-041
Other Languages:
German:Cherepanovit
Spanish:Cherepanovita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Cherepanovite

Reference List:

- +
American Mineralogist: 71: 1544.

Internet Links for Cherepanovite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Cherepanovite details from Handbook of Mineralogy (PDF)
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  • Localities for Cherepanovite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    New Zealand
     
    • South Island
      • Howard Valley
    Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
    Russia
     
    • Eastern-Siberian Region
    www.cosis.net/abstracts/EAE03/14099/EAE03-A-14099.pdf.
    • Far-Eastern Region
      • Chukotskii Autonomous Okrug
        • Pekul'nei Range
          • Northern Pekul'nei River
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
      • Koriak-Kamchatka area (Koriak Autonomous Okrug & Kamchatka Oblast')
    ZVMO 114 (1985), 464; HB1 (1990)
      • Primorskiy Kray
        • Khanka lake
    Shcheka G.G., Vrzhosek A.A., Lehmann B., Tolstykh N.D. (2004) Associations of platinum-group minerals from the Zolotaya gold placiers, Primorye, Russian Far East, - Can. Miner., v.42, pp. 583-599.
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
    [AmMin 84:195]
    • Western-Siberian Region
      • Polar Urals
        • Tyumenskaya Oblast'
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Jan Pašava, Ilja Knésl, Anna Vymazalová, Ivan Vavřín, Ludmila Ivanovna Gurskaya, Leonid Ruslanovich Kolbantsev (2011) Geochemistry and mineralogy of platinum-group elements (PGE) in chromites from Centralnoye I, Polar Urals, Russia. Geoscience Frontiers 2:81-85
    South Africa
     
    • Limpopo Province
      • Bushveld Complex
        • Burgersfort
          • Sekhukhuneland
    Melcher, F., & Lodziak, J. (2007). Platinum-group minerals of concentrates from the Driekop platinum pipe, Eastern Bushveld Complex Tribute to Eugen F. Stumpfl. Neues Jahrbuch für Mineralogie-Abhandlungen: Journal of Mineralogy and Geochemistry, 183(2), 173-195.
    The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
    USA
     
    • Alaska
      • Bethel Borough
    www.cannonmicroprobe.com/Mineral_Specimens.htm
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