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Clerite Mineral Data
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General Clerite Information
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 Chemical Formula: |
MnSb2S4 |
| Composition: |
Molecular Weight = 426.70 gm |
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Manganese 12.88 % Mn |
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Antimony 57.07 % Sb |
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Sulfur 30.06 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Mn2+Sb2S4 |
| Environment: |
In pyrite-realgar ore. |
| IMA Status: |
Approved IMA 1995 (Dana # Added) |
| Locality: |
The Vorontsovskoye gold deposit in the Ural Mountains near Serov about 300 km north of Ekaterinburg, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
For Onisim Yegorovitch Kler (1845-1920), Honorary Member of the Russian Mineralogical Society. |
| Synonym: |
ICSD 79676 |
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IMA1995-029 |
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PDF 83-580 |
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Clerite Crystallography
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| Axial Ratios: |
a:b:c =0.7987:1:0.2653 |
| Cell Dimensions: |
a = 11.47, b = 14.36, c = 3.81, Z = 4; V = 627.54 Den(Calc)= 4.52 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnam |
| X Ray Diffraction: |
By Intensity(I/Io): 2.65(1), 3.69(0.9), 2.9(0.8), |
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Physical Properties of Clerite
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| Cleavage: |
None |
| Color: |
Black. |
| Density: |
4.93 - 4.39, Average = 4.66 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Hardness: |
3.5-4 - Copper Penny-Fluorite |
| Luster: |
Sub Metallic |
| Streak: |
brown |
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Optical Properties of Clerite
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| RL Anisotrophism: |
Strong. |
| RL Bireflectance: |
Distinct. |
| RL Color: |
Light gray. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Clerite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
35.00 |
24.00 |
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| 546 nm |
36.10 |
23.90 |
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| 589 nm |
36.90 |
24.90 |
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| 650 nm |
35.60 |
25.70 |
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Calculated Relative Intensity Colors of Clerite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
320% |
360% |
370% |
| R1 |
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| R2 |
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Calculated Properties of Clerite
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| Electron Density: |
Bulk Density (Electron Density)=4.05 gm/cc
note: Specific Gravity of Clerite =4.52 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0022544537
Boson Index = 0.9977455463 |
| Photoelectric: |
PEClerite = 192.73 barns/electron
U=PEClerite x rElectron Density= 779.89 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clerite is Not Radioactive |
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Clerite Classification
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| Dana Class: |
03.07.09.05 (03)Sulfides - Sulfosalts |
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(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.07.09)Galenobismutite Group |
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03.07.09.01 Galenobismutite PbBi2S4 Pnam 2/m 2/m 2/m |
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03.07.09.02 Sakharovaite? (Pb,Fe)(Bi,Sb)2S4 Mono |
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03.07.09.03 Berthierite FeSb2S4 Pnam 2/m 2/m 2/m |
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03.07.09.04 Garavellite FeSbBiS4 Pnam 2/m 2/m 2/m |
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03.07.09.05 Clerite! MnSb2S4 Pnam 2/m 2/m 2/m |
| Strunz Class: |
02.HA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.H - Sulfosalts of SnS Archetype |
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02.HA -With Cu, Ag, Fe (without Pb) |
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02.HA.20 Berthierite FeSb2S4 Pnam 2/m 2/m 2/m |
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02.HA.20 Clerite! MnSb2S4 Pnam 2/m 2/m 2/m |
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02.HA.20 Garavellite FeSbBiS4 Pnam 2/m 2/m 2/m |
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Other Clerite Information
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| References: |
NAME( AmMin, Vol. 28, No 3) PHYS. PROP.(Eur. J. Min.,Vol.8,1996) OPTIC PROP.(MinRec, v 28, p 220) |
| See Also: |
Links to other databases for Clerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Clerite Specimen Label here :
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Clerite
MnSb2S4
Dana No: 03.07.09.05 Strunz No: 02.HA.20
Locality:
Notes:
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