Chalcostibite Mineral Data

General Chalcostibite Information

Chemical Formula:

CuSbS2

Composition:

Molecular Weight = 249.43 gm

Copper 25.48 % Cu

Antimony 48.81 % Sb

Sulfur 25.71 % S

______

100.00 %

Empirical Formula:

CuSbS₂

Environment:

Associated with other sulfosalts and sulfides in hydrothermal veins.

IMA Status:

Valid Species (Pre-IMA) 1847

Locality:

Wolfsberg, in the Hartz Mountains. Link to MinDat.org Location Data.

Name Origin:

From the Greek chalkos - "copper" and stibi - "antimony."

Name Pronunciation:

Chalcostibite + Pronunciation

Synonym:

ICSD 85133

PDF 44-1417

Wolfsbergite

Chalcostibite Image

Images:

Chalcostibite

Comments: Partial crystal of chalcostibite. The crystal is partially altered to blue azurite and green malachite.
Location: Gar El Anz, Morocco. Scale: 3 x 1.8 cm.
© John Veevaert

Images:

Chalcostibite

Comments: Dark gray crystals of chalcostibite on white quartz matrix.
Location: Boldut mine, Cavnic Maramures, Rumania. Scale: 7 x 7 x 3.5 cm.
© Fabre Minerals

Chalcostibite Crystallography

Axial Ratios:

a:b:c =0.4149:1:0.2618

Cell Dimensions:

a = 6.0211, b = 14.509, c = 3.7992, Z = 4; V = 331.90 Den(Calc)= 4.99

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnam

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

By Intensity(I/I_o): 3.14(1), 3(0.9), 1.762(0.5),

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Forms: ( 1 3 0) ( 0 1 0) ( 1 2 0) ( 1 1 0) ( 0 1 1)

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Physical Properties of Chalcostibite

Cleavage:

{001} Good

Color:

Lead gray, Blue gray, Dark gray.

Density:

4.75 - 5, Average = 4.87

Diaphaneity:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

3.5 - Copper Penny

Luminescence:

Non-fluorescent.

Luster:

Metallic

Streak:

black

Optical Properties of Chalcostibite

RL Anisotrophism:

Observed.

RL Pleochroism:

Feeble in air, somewhat stronger in oil.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Chalcostibite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	37.40	41.80
420 nm	38.20	43.80
440 nm	39.00	45.80
460 nm	39.40	47.00
480 nm	39.40	47.20
500 nm	39.00	46.70
520 nm	38.40	45.20
540 nm	37.50	43.70
560 nm	36.50	42.30
580 nm	35.50	41.00
600 nm	34.80	39.80
620 nm	34.50	39.00
640 nm	34.30	38.40
660 nm	34.10	38.30
680 nm	33.80	38.20
700 nm	33.50	38.20

**Calculated Relative Intensity Colors of Chalcostibite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	250%
R₁
R₂

Calculated Properties of Chalcostibite

Electron Density:

Bulk Density (Electron Density)=4.48 gm/cc
note: Specific Gravity of Chalcostibite =4.99 gm/cc.

Fermion Index:

Fermion Index = 0.0019283721
Boson Index = 0.9980716279

Photoelectric:

PE_{Chalcostibite}= 173.24 barns/electron
U=PE_{Chalcostibite} x rElectron Density= 776.33 barns/cc.

Radioactivity:

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

Chalcostibite Classification

Dana Class:

03.07.05.01 (03)Sulfides - Sulfosalts

(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.07.05)Dana Group

03.07.05.01 Chalcostibite CuSbS2 Pnam 2/m 2/m 2/m

03.07.05.02 Emplectite CuBiS2 Pnam 2/m 2/m 2/m

Strunz Class:

02.HA.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.H - Sulfosalts of SnS Archetype

02.HA -With Cu, Ag, Fe (without Pb)

02.HA.05 Emplectite CuBiS2 Pnam 2/m 2/m 2/m

02.HA.05 Chalcostibite CuSbS2 Pnam 2/m 2/m 2/m

Other Chalcostibite Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Chalcostibite :
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 - HyperPhysics
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Chalcostibite

CuSbS2
Dana No: 03.07.05.01 Strunz No: 02.HA.05
Locality:

Notes:

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