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Cherepanovite

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About CherepanoviteHide

Formula:
RhAs
Colour:
Gray-white
Lustre:
Metallic
Hardness:
6
Specific Gravity:
9.72 (Calculated)
Crystal System:
Orthorhombic
Name:
For Vladimir Aleksandrovich Cherepanov (1927-1983) Russian geologist and mineralogist, Karpinskii All-Union Research Institute of Geology, St. Petersburg, Russia.
A possible Sb analogue is coded as 'UM1979-19-Sb:Rh'.


Classification of CherepanoviteHide

Approved
2/C.20-130
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.
2.8.17.2

2 : SULFIDES
8 : AmXp, with m:p = 1:1
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

Physical Properties of CherepanoviteHide

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

Optical Data of CherepanoviteHide

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 CherepanoviteHide

Formula:
RhAs
Common Impurities:
Ru,Pt,Ni

Crystallography of CherepanoviteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
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 V:
122.78 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Grains to 20 microns.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020514CherepanoviteHeyding R D, Calvert L D (1961) Arsenides of the transition metals IV. A note on the platinum metal arsenides Canadian Journal of Chemistry 39 955-9571961Synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.01Å(10)
2.10Å(6)
1.771Å(2)
1.501Å(2)
1.354Å(2)

Type Occurrence of CherepanoviteHide

General Appearance of Type Material:
individual grains (up to 20 microns) or their aggregates (up to 100 microns) included in ferronickelplatinum or among aggregates of cooperite
Place of Conservation of Type Material:
Mining Museum of the Leningrad Mining Institute (Leningrad, USSR) 2103/1.
Geological Setting of Type Material:
Placer platinum deposit derived from ultramafic massif in ophiolite belt.
Associated Minerals at Type Locality:

Synonyms of CherepanoviteHide

Other Language Names for CherepanoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Cherepanovite associated with CooperitePtS
1 photo of Cherepanovite associated with Osmium(Os,Ir,Ru)
1 photo of Cherepanovite associated with PlatinumPt
1 photo of Cherepanovite associated with PalladoarsenidePd2As
1 photo of Cherepanovite associated with IsoferroplatinumPt3Fe

Related Minerals - Nickel-Strunz GroupingHide

2.CC.UM2007-26-S:CuFeIrNiPtRh(Ir,Cu,Ni,Pt,Rh,Fe)9S11
2.CC.05AchávaliteFeSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05BreithauptiteNiSbHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05FrebolditeCoSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05KotulskitePd(Te,Bi)2-x (x ≈ 0.4)Hex.
2.CC.05LangisiteCoAsHex. 6 : P63
2.CC.05NickelineNiAsHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
2.CC.05Sederholmitebeta-NiSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05SobolevskitePdBiHex.
2.CC.05StumpflitePtSbHex.
2.CC.05SudburyitePdSbHex.
2.CC.05JaipuriteCoSHex.
2.CC.05ZlatogoriteNiCuSb2Trig.
2.CC.10PyrrhotiteFe1-xSMon.
2.CC.10Smythite(Fe,Ni)3+xS4 (x=0-0.3)Trig. 3m (3 2/m) : R3m
2.CC.10TroiliteFeSHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.15Modderite(Co,Fe)AsOrth.
2.CC.15Ruthenarsenite(Ru,Ni)AsOrth.
2.CC.15Westerveldite(Fe,Ni,Co)AsOrth.
2.CC.20MilleriteNiSTrig. 3m : R3m
2.CC.20Mäkineniteγ-NiSeTrig.
2.CC.20UM1990-38-S:CuFeIrNiPtRh(Ni,Fe,Rh,Cu,Ir,Pt)S
2.CC.25Mackinawite(Fe,Ni)9S8Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
2.CC.30Hexatestibiopanickelite(Pd,Ni)(Sb,Te)Hex.
2.CC.30VavříniteNi2SbTe2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.35aBraggite(Pt,Pd,Ni)STet.
2.CC.35bCooperitePtSTet. 4/mmm (4/m 2/m 2/m) : P42/mmc
2.CC.35aVysotskite(Pd,Ni)STet.

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

2.8.17.1Ruthenarsenite(Ru,Ni)AsOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.12.1Seinäjokite(Fe,Ni)(Sb,As)2Orth.
3.12.2LauriteRuS2Iso. m3 (2/m 3) : Pa3
3.12.3Ruthenarsenite(Ru,Ni)AsOrth.
3.12.4Anduoite(Ru,Os)As2Orth.
3.12.5Ruarsite(Ru,Os)AsSMon.
3.12.6XingzhongitePb2+Ir3+2S4Iso.
3.12.7RhodplumsiteRh3Pb2S2Trig.
3.12.8Cuprorhodsite(Cu1+0.5Fe3+0.5)Rh3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.9KonderiteCu3Pb(Rh,Pt,Ir)8S16Hex. 6/m : P6/m
3.12.10Bowieite(Rh,Ir,Pt)2S3Orth. mmm (2/m 2/m 2/m)
3.12.12Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
3.12.13Vysotskite(Pd,Ni)STet.
3.12.14Vasilite(Pd,Cu)16(S,Te)7Iso.
3.12.15PalladseitePd17Se15Iso. m3m (4/m 3 2/m)
3.12.16Oosterboschite(Pd,Cu)7Se5Orth.
3.12.17TelluropalladinitePd9Te4Mon.
3.12.18TemagamitePd3HgTe3Trig. 3m : P3m1
3.12.19SopcheiteAg4Pd3Te4Orth.
3.12.20MicheneritePdBiTeIso. 2 3 : P21 3
3.12.21KotulskitePd(Te,Bi)2-x (x ≈ 0.4)Hex.
3.12.22Telargpalite(Pd,Ag)3(Te,Bi)Iso.
3.12.23MerenskyitePdTe2Trig. 3m : P3m1
3.12.24PalladoarsenidePd2AsMon. 2/m : P2/m
3.12.25StillwateritePd8As3Trig.
3.12.26AtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
3.12.27MajakitePdNiAsHex.
3.12.28PalarstanidePd5(Sn,As)2Hex.
3.12.29ArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
3.12.30VincentitePd3AsTet.
3.12.31PalladobismutharsenidePd2(As,Bi)Orth.
3.12.32StibiopalladinitePd5Sb2Hex.
3.12.33Hexatestibiopanickelite(Pd,Ni)(Sb,Te)Hex.
3.12.34SudburyitePdSbHex.
3.12.35TestibiopalladitePdTe(Sb,Te)Iso.
3.12.36BorovskitePd3SbTe4Iso.
3.12.37IsomertieitePd11Sb2As2Iso. m3m (4/m 3 2/m) : Fd3m
3.12.38Mertieite-IPd11(Sb,As)4Hex.
3.12.39Mertieite-IIPd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
3.12.40SobolevskitePdBiHex.
3.12.41Frooditeα-PdBi2Mon. 2/m : B2/m
3.12.42PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
3.12.43UrvantsevitePd(Bi,Pb)2Tet.
3.12.44CooperitePtSTet. 4/mmm (4/m 2/m 2/m) : P42/mmc
3.12.45Braggite(Pt,Pd,Ni)STet.
3.12.46Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm (2/m 2/m 2/m) : Pmmm
3.12.47MalaniteCu1+(Ir3+Pt4+)S4Iso.
3.12.48Moncheite(Pt,Pd)(Te,Bi)2Trig.
3.12.49MaslovitePtBiTeIso. 2 3 : P21 3
3.12.50SperrylitePtAs2Iso. m3 (2/m 3) : Pa3
3.12.51PlatarsitePtAsSIso.
3.12.52GeversitePtSb2Iso. m3 (2/m 3) : Pa3
3.12.53DaomaniteCuPtAsS2Orth.
3.12.54Genkinite(Pt,Pd,Rh)4Sb3Tet. 4 2 2
3.12.55StumpflitePtSbHex.
3.12.56InsizwaitePt(Bi,Sb)2Iso. m3 (2/m 3) : Pa3
3.12.57ErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
3.12.58Omeiite(Os,Ru)As2Orth.
3.12.59Osarsite(Os,Ru)AsSMon.
3.12.60Kashinite(Ir,Rh)2S3Orth.
3.12.61InaglyiteCu3Pb(Ir,Pt)8S16Hex.
3.12.62Cuproiridsite(Cu,Fe)Ir2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.12.63Iridarsenite(Ir,Ru)As2Mon.
3.12.64Irarsite(Ir,Ru,Rh,Pt)AsSIso.
3.12.65TolovkiteIrSbSIso.

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 CherepanoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Rudashevsky N S, Motshalov A G, Trubkin N V, Shumskaya N M, Shkursky V I, Evstigneeva T L (1985) Cherepanovite RhAs - A new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 114, issue 4, 464-469
Hawthorne F C, Bladh K W, Burke E A J, Ercit S, Grew E S, Grice J D, Puziewicz J, Roberts A C, Schedler R A, Shigley J E (1986) New mineral names. American Mineralogist: 71: 1544.
Schulz K J, Musbah O A, Chang Y A (1991) A phase investigation of the Rh-Ga-As system. Journal of Phase Equilibria 12, 10-14

Internet Links for CherepanoviteHide

Localities for CherepanoviteHide

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.
Brazil
 
  • Pará
    • Carajás mineral province
      • Curionópolis
Teixeira, A. S. (2014). Geologia, petrologia e geocronologia do complexo acamadado lago grande: evidência para uma suíte magmática mineralizada a egp na província mineral de Carajás, Brasil.
Canada
 
  • Ontario
    • Thunder Bay District
      • Coldwell complex
Mcdonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J. & Ames, D.E. (2015) Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell complex, Ontario, Canada. Canadian Mineralogist 53, 1-13.
India
 
  • Karnataka
    • Davanagere District
      • Shimoga schist belt
Devaraju, T. C., Alapieti, T. T., & Kaukonen, R. J. (2005). SEM-EDS Study of the Platinum-Group Minerals in the PGE Mineralized Hanumalapura Segment of the Layered Mafic-Ultramafic Complex of Channagifu, Davangere District, Karnataka. Geological Society of India, 65(6), 745-752.
Japan
 
  • Kumamoto Prefecture
    • Shimomashiki District
      • Misato
NISHIO–HAMANE, D., Tanaka, T., & Shinmachi, T. (2019). Minakawaite and platinum–group minerals in the placer from the clinopyroxenite area in serpentinite mélange of Kurosegawa belt, Kumamoto Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 114(5), 252-262.
New Zealand
 
Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
  • Tasman Region
    • St. Arnaud
Railton, G.L., Watters, W.A. (1990) Minerals of New Zealand, New Zealand Geological Survey Bulletin No. 104.
Russia
 
  • Chelyabinsk Oblast
[AmMin 84:195]
  • Chukotka Autonomous Okrug
    • Pekul'ney Range (Pekul'nei Range)
      • Northern Pekul'ney River (Northern Pekul'nei River; Northern Pekul'neyveem River)
Rudashevskiy, N.S., Mochalov, A.G., Trubkin, N.V., Shumskaya, N.I., Shkurskiy, V.I., Evstigneeva, T.L. [Рудашевский Н.С, Мочалов А.Г., Трубкин Н.В., Шумская Н.И., Шкурский В.И., Евстигнеева Т.Л.] (1985) Cherepanovite, RhAs, a new mineral [Черепановит RhAs-новый минерал]. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva [Записки ВМО], 114, 4, 464-468 (in Russian); Pekov, I.V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Picture, Moscow, 369 pp.
  • Kemerovo Oblast
Zhmodik, S. M., Nesterenko, G. V., Airiyants, E. V., Belyanin, D. K., Kolpakov, V. V., Podlipsky, M. Y., & Karmanov, N. S. (2016). Alluvial platinum-group minerals as indicators of primary PGE mineralization (placers of southern Siberia). Russian Geology and Geophysics, 57(10), 1437-1464.
ZVMO 114 (1985), 464; HB1 (1990); Fejer, E. E. (1986). Thirty-fourth list of new mineral names. Mineralogical Magazine, 50, 741-61.
www.cosis.net/abstracts/EAE03/14099/EAE03-A-14099.pdf.
    • Lysanskiy dunite-peridotite-gabbro complex
Barkov, A., Shvedov, G., & Martin, R. (2018). PGE–(REE–Ti)-rich micrometer-sized inclusions, mineral associations, compositional variations, and a potential lode source of platinum-group minerals in the Sisim Placer Zone, Eastern Sayans, Russia. Minerals, 8(5), 181.
  • Primorsky Krai
    • 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, - Canadian Mineralogist, v.42, pp. 583-599.
  • Tyumen Oblast
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Kojonen, K., Zaccarini, F., & Garuti, G. (2003, April). First finding of native gold in the chromitites of the Ray-Iz ophiolitic complex, Polar Urals. In EGS-AGU-EUG Joint Assembly (Vol. 1, p. 8352).; Shmelev V.R., Perevozchikov B.V., Moloshag V.P. (2014) The Rai-Iz ophiolite massif in the Polar Urals: geology and chromite deposits. Field trip guidebook. 12th International Platinum Symposium. Yekaterinburg: IGG UB RAS, 2014. 44 р.
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
    • Sekhukhune District
      • Burgersfort
The Canadian Mineralogist Vol. 43, pp. 1711-1734 (2005)
        • 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.
  • Mpumalanga
    • Lydenburg
Zaccarini, F., Garuti, G., & Cawthorn, R. G. (2002). Platinum-group minerals in chromitite xenoliths from the Onverwacht and Tweefontein ultramafic pipes, eastern Bushveld Complex, South Africa. The Canadian Mineralogist, 40(2), 481-497.
USA
 
  • Alaska
    • Bethel Census Area
www.cannonmicroprobe.com/Mineral_Specimens.htm
 
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