Robinsonite Mineral Data + 
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- 3.6.16.1 Robinsonite Pb4Sb6S13 I2/m 2/m
- II/E.24-10 Baumhauerite Pb3As4S9 P1 1
- II/E.24-15 Baumhauerite-2a! Pb3As4S9 Unk 2/m
- II/E.24-20 Robinsonite Pb4Sb6S13 I2/m 2/m
General Robinsonite Information |
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 Chemical Formula: |
Pb4Sb6S13 | ||
| Composition: |
Molecular Weight = 1,976.16 gm | ||
| Antimony 36.97 % Sb | |||
| Lead 41.94 % Pb | |||
| Sulfur 21.09 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Pb4Sb6S13 | ||
| Environment: |
A primary hydrothermal mineral. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1952 | ||
| Locality: |
Red Bird mercury mine, Pershing County, Nevada, USA. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Stephen Clive Robinson (1911-), Geological Survey of Canada, who first synthesized the mineral. | ||
| Synonym: |
ICSD 300109 | ||
| PDF 42-563 | |||
Robinsonite Image | |||
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Images:
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Robinsonite Crystallography |
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| Axial Ratios: |
a:b:c =5.9542:1:6.1472 | ||
| Cell Dimensions: |
a = 23.698, b = 3.98, c = 24.466, Z = 4; beta = 93.9° V = 2,302.24 Den(Calc)= 5.70 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.39(1), 3.92(0.8), 4.04(0.8), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Robinsonite |
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| Cleavage: |
None | ||
| Color: |
Bluish lead gray. | ||
| Density: |
5.64 - 5.75, Average = 5.69 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. | ||
| Habit: |
Massive - Fibrous - Distinctly fibrous fine-grained forms. | ||
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | ||
| Habit: |
Striated - Parallel lines on crystal surface or cleavage face. | ||
| Hardness: |
2.5-3 - Finger Nail-Calcite | ||
| Luster: |
Metallic | ||
Optical Properties of Robinsonite |
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| RL Anisotrophism: |
Strong, in blue-gray, cream-white and brown-gray. | ||
Calculated Properties of Robinsonite |
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| Electron Density: |
relectron=4.86 gm/cc |
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| Fermion Index |
Fermion Index = 0.09426 Boson Index = 0.90574 |
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| Photoelectric: |
PERobinsonite = 884.36 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Robinsonite is Not Radioactive |
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Robinsonite Classification |
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| Dana Class: |
3.6.16.1 (3)Sulfides - Sulfosalts | ||
| (3.6)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (3.6.16)Dana Group | |||
| Strunz Class: |
II/E.24-20 II - Sulfides and sulphosalts | ||
| II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts with Arsen and Antimon x = 2.3 - 1.8 | |||
| II/E.24 - Baumhauerite - Robinsonite series | |||
Other Robinsonite 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 Robinsonite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Robinsonite using: Visit our Advertisers for Robinsonite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Robinsonite Mineral Data : Ask about Robinsonite here : Print or Cut-and-Paste your Robinsonite Specimen Label here :
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