Costibite Mineral Data

General Costibite Information

Chemical Formula:

CoSbS

Composition:

Molecular Weight = 212.75 gm

Cobalt 27.70 % Co

Antimony 57.23 % Sb

Sulfur 15.07 % S

______

100.00 %

Empirical Formula:

CoSbS

Environment:

In hydrothermal deposits formed at moderate temperatures but also found in contact metasomatic replacements, and epithermal replacements as well as in pegmatites.

IMA Status:

Approved IMA 1970

Locality:

Deer Park, Stevens County, Washington, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the composition, Cobalt and STIBium (Latin name for Antimony).

Synonym:

ICSD 40044

PDF 22-1082

Costibite Image

Images:

Costibite

Comments: B&W polished section image of ullmannite-willyamite zoned crystal (Ul-Wi) surrounded by lollingite (Lol) containing lamellae of costibite (Co) in a siderite (Sid) matrix. AmMin v55:10.
Location: Consols Mine, Broken Hill, New South Wales, Australia. Scale: See Image.
© American Mineralogist

Costibite Crystallography

Axial Ratios:

a:b:c =0.7401:1:0.9938

Cell Dimensions:

a = 3.603, b = 4.868, c = 4.838, Z = 2; V = 84.86 Den(Calc)= 8.33

Crystal System:

Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: P mn2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.596(1), 2.503(0.9), 1.908(0.8),

Physical Properties of Costibite

Color:

Steel gray.

Density:

6.89

Diaphaneity:

Opaque

Habit:

Inclusions - Generally found as inclusions in other minerals.

Habit:

Lamellar - Thin laminae producing a lamellar structure.

Hardness:

6 - Orthoclase

Luster:

Metallic

Optical Properties of Costibite

RL Anisotrophism:

Weak, reddish brown or orange, to bluish.

RL Color:

Grayish.

RL Pleochroism:

Weak, gray-white with bluish and brownish tints.

Calculated Properties of Costibite

Electron Density:

Bulk Density (Electron Density)=7.36 gm/cc
note: Specific Gravity of Costibite =8.33 gm/cc.

Fermion Index:

Fermion Index = 0.0011304155
Boson Index = 0.9988695845

Photoelectric:

PE_Costibite= 201.52 barns/electron
U=PE_Costibite x rElectron Density=1,483.36 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Costibite is Not Radioactive

Costibite Classification

Dana Class:

02.12.07.01 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.07)Costibite Group (Orthorhombic Cobalt Arsenides or Antimonides)

02.12.07.01 Costibite CoSbS P mn2₁ mm2

02.12.07.02 Paracostibite CoSbS P bca 2/m 2/m 2/m

02.12.07.03 Oenite! CoSbAs Unk Ortho

Strunz Class:

02.EB.10d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.E - Metal Sulfides, M:S ï¿½ 1:2

02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.

02.EB.10d Costibite CoSbS P mn2₁ mm2

Other Costibite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Costibite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Costibite Specimen Label here :

Costibite

CoSbS
Dana No: 02.12.07.01 Strunz No: 02.EB.10d
Locality:

Notes:

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