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Chabourneite Mineral Data
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General Chabourneite Information
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 Chemical Formula: |
(Tl,Pb)21(Sb,As)91S147 |
| Composition: |
Molecular Weight = 18184.75 gm |
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Thallium 15.73 % Tl |
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Antimony 33.48 % Sb |
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Arsenic 16.89 % As |
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Lead 7.98 % Pb |
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Sulfur 25.92 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Tl14Pb7Sb50As41S147 |
| Environment: |
Hydrothermal deposit in dolomitic limestones with other As-Tl minerals. |
| IMA Status: |
Approved IMA 1976 |
| Locality: |
Jas Roux deposit, Hautes-Alpes, France. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the Chabourneou Glacier, near the locality. |
| Synonym: |
ICSD 100315 |
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PDF 35-474 |
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Chabourneite Image |
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Images:
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Chabourneite Smithite
Comments: Black metallic chabourneite with conchoidal fracture, associated with yellow-red realgar and deep-red smithite.
Location: Jas Roux, Pelvoux Mt., Valgaudemar, Hautes-Alpes, Provence-Alpes-CÃīte d'Azur, France.
Scale: See Image.
© Rruff Database |
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Chabourneite Crystallography
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| Axial Ratios: |
a:b:c =0.3836:1:0.2003 |
| Cell Dimensions: |
a = 16.346, b = 42.602, c = 8.534, Z = 1; alpha = 95.86°, beta = 86.91°, gamma = 96.88° V = 5,860.68 Den(Calc)= 5.15 |
| Crystal System: |
Triclinic - Pedial H-M Symbol (1) Space Group: P1 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.573(1), 2.135(0.9), 2.808(0.8), |
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Physical Properties of Chabourneite
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| Color: |
Black. |
| Density: |
5.1 |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Hardness: |
3-3.5 - Calcite-Copper Penny |
| Luster: |
Sub Metallic |
| Streak: |
brown red |
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Optical Properties of Chabourneite
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| RL Anisotrophism: |
Strong, in bluish and greenish colors. |
| RL Color: |
White with red internal reflections noted along cracks. |
| RL Pleochroism: |
Weak. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Chabourneite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
32.40 |
40.50 |
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| 420 nm |
32.10 |
40.00 |
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| 440 nm |
31.80 |
39.50 |
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| 460 nm |
31.50 |
39.00 |
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| 480 nm |
31.30 |
38.40 |
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| 500 nm |
31.10 |
37.90 |
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| 520 nm |
31.00 |
37.30 |
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| 540 nm |
30.80 |
36.60 |
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| 560 nm |
30.60 |
35.80 |
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| 580 nm |
30.20 |
35.10 |
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| 600 nm |
29.60 |
34.30 |
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| 620 nm |
29.00 |
33.50 |
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| 640 nm |
28.20 |
32.80 |
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| 660 nm |
27.50 |
32.00 |
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| 680 nm |
26.80 |
31.30 |
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| 700 nm |
26.40 |
30.70 |
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Calculated Relative Intensity Colors of Chabourneite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
310% |
| R1 |
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| R2 |
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Calculated Properties of Chabourneite
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| Electron Density: |
Bulk Density (Electron Density)=4.51 gm/cc
note: Specific Gravity of Chabourneite =5.15 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEChabourneite = 530.46 barns/electron
U=PEChabourneite x rElectron Density=2,392.55 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chabourneite is Not Radioactive |
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Chabourneite Classification
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| Dana Class: |
03.08.12.01 (03)Sulfides - Sulfosalts |
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(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.08.12)Dana Group |
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03.08.12.01 Chabourneite (Tl,Pb)21(Sb,As)91S147 P1 1 |
| Strunz Class: |
02.HC.05e 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.HC -With only Pb |
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02.HC.05e Chabourneite (Tl,Pb)21(Sb,As)91S147 P1 1 |
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Other Chabourneite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Chabourneite :
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
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Chabourneite
(Tl,Pb)21(Sb,As)91S147
Dana No: 03.08.12.01 Strunz No: 02.HC.05e
Locality:
Notes:
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