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Cherepanovite

Collectors Summary

Color weiß mit einem Stich nach Orange
Streak color schwarz
Hardness (Mohs) 6
Crystal System orthorhombisch, Pnma

Chemism

Chem­ical formula

RhAs

Chem­ical com­po­si­tion

Arsen, Rhodium

Unit weight: 177.827104 u; Number of atoms in the formula: 2

Info

Empirical formula:

RhAs

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Arsenic

As

42.13

1

50.00

74.9216020

74.9216020

Rhodium

Rh

57.87

1

50.00

102.9055020

102.9055020

Anal­y­sis wt%

Ø Rh : 56.25, Ru : 1.48, Pt : 0.51, As : 41.80, PLT : 58.33 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 85)

Strunz 9th edi­tion incl. updates

2.CC.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
C: mit Nickel (Ni), Eisen (Fe), Cobalt (Co), usw.
15:Westerveldit-Gruppe

Lapis Clas­sifica­tion

II/C.20-130

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1
20: Nickelin-Gruppe

Clas­sifica­tion by Hölzel

2.CC.560

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
C: With Pd,Pt, etc. - Coordination Number ~[4], Planar
5: Westerveldite-Group

Dana 8th edi­tion

02.08.17.02

02: Sulfide Minerals
08: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

weiß mit einem Stich nach Orange

Streak color

schwarz

Diaphane­ity (Trans­parency)

opak

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell param­e­ters a (Å)

5.70

Cell param­e­ters b (Å)

3.59

Cell param­e­ters c (Å)

6.00

Cell param­e­ters a/b or c/a

1.588

Cell param­e­ters c/b

1.671

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

122.778

X-Ray Pow­der Diffrac­tion

3.10(10),
3.01(100),
2.84(10),
2.10(60),
1.813(20),
1.771(20),
1.501(20),
1.354(20)

XRD chart Cherepanovite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6

VHN (Hard­ness Vick­ers)

740 (50g)

Density (g/cm³)

9.72

9.62 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Rudashevsky & Mochalov & Trubkin & Shumskaya & Shkurskiy & Evstigneeva

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 114 (1985), 464

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Modderite

(Co,Fe)As

orthorhombisch : mmm, mm2 : Pmcn, Pna21

2.CC.15

Minakawaite

RhSb

orthorhombisch : mmm : Pnma

2.CC.15

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

2.CC.15

Westerveldite

(Fe,Ni,Co)As

orthorhombisch : mmm : Pmcn

2.CC.15

Ruthenarsenite

(Ru,Ni)As

2.CC.15

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Sorosite

Cu1+x(Sn,Sb)

hexagonal : 6/mmm : P63/mmc

II/C.20-005

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

II/C.20-010

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

II/C.20-020

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

II/C.20-030

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

II/C.20-040

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

II/C.20-050

Vavřínite

Ni2SbTe2

II/C.20-060

'Hexatestibiopanickelite'

(Ni,Pd)(Te,Sb)

hexagonal : 6/mmm : P63/mmc

II/C.20-070

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

II/C.20-080

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

II/C.20-090

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

II/C.20-095

Polarite

Pd(Pb,Bi)

orthorhombisch : mm2 : Ccm21

II/C.20-100

Sobolevskite

PdBi

II/C.20-110

Ruthenarsenite

(Ru,Ni)As

II/C.20-120

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

II/C.20-130

Wassonite

TiS

trigonal : 3m : R3m

II/C.20-140

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Westerveldite

(Fe,Ni,Co)As

orthorhombisch : mmm : Pmcn

2.CC.500

Modderite

(Co,Fe)As

orthorhombisch : mmm, mm2 : Pmcn, Pna21

2.CC.510

Ruthenarsenite

(Ru,Ni)As

2.CC.550

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

2.CC.560

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Smythite

(Fe,Ni)3+xS4 {x≈0-0.3}

trigonal : 3m : R3m

02.08.10.02

Nickeline

NiAs

hexagonal : 6/mmm : P63/mmc

02.08.11.01

Breithauptite

NiSb

hexagonal : 6/mmm : P63/mmc

02.08.11.02

Sederholmite

NiSe

hexagonal : 6/mmm : P63/mmc

02.08.11.03

Sudburyite

(Pd,Ni)Sb

hexagonal : 6/mmm : P63/mmc

02.08.11.05

Kotulskite

Pd(Te,Bi)2-x {x ≈ 0.4}

hexagonal : 6/mmm : P63/mmc

02.08.11.06

Sobolevskite

PdBi

02.08.11.07

Stumpflite

Pt(Sb,Bi)

hexagonal : 6/mmm : P63/mmc

02.08.11.08

Langisite

(Co,Ni)As

hexagonal : 6/mmm : P63/mmc

02.08.11.09

Freboldite

CoSe

hexagonal : 6/mmm : P63/mmc

02.08.11.10

Sorosite

Cu1+x(Sn,Sb)

hexagonal : 6/mmm : P63/mmc

02.08.11.11

Covellite

CuS

hexagonal : 6/mmm : P63/mmc

02.08.12.01

Klockmannite

Cu5.2Se6

hexagonal : 6/mmm : P63/mmc

02.08.12.02

Vulcanite

CuTe

orthorhombisch : mmm : Pmnm

02.08.13.01

Cinnabar

HgS

trigonal : 32, 32 : P3121, P3221

02.08.14.01

Millerite

NiS

trigonal : 3m : R3m

02.08.16.01

Mäkinenite

gamma-NiSe

trigonal : 3m : R3m

02.08.16.02

Ruthenarsenite

(Ru,Ni)As

02.08.17.01

Cherepanovite

RhAs

orthorhombisch : mmm : Pnma

02.08.17.02

Modderite

(Co,Fe)As

orthorhombisch : mmm, mm2 : Pmcn, Pna21

02.08.18.01

Westerveldite

(Fe,Ni,Co)As

orthorhombisch : mmm : Pmcn

02.08.19.01

IMA Number

IMA 1984-041

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Cherepanovit
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Mineralogisch-Petrographisches-Institut Hamburg - search for: Cherepanovit

English pages

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