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
X Ray Diffraction:
By Intensity(I/Io ): 3.14(1), 3(0.9), 1.762(0.5),
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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
R 2
∑ 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:
PEChalcostibite = 173.24 barns/electronU=PEChalcostibite x r Electron 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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Chalcostibite
CuSbS2
Dana No: 03.07.05.01 Strunz No: 02.HA.05
Locality:
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