Sorbyite Mineral Data + 
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Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows
- 3.6.12.1 Sorbyite Pb19(Sb,As)20S49 C 2/m 2/m
- II/E.20-10 Madocite Pb17(Sb,As)16S41 Pb2a mm2
- II/E.20-20 Launayite Pb22Sb26S61 C 2/m 2/m
- II/E.20-25 Pellouxite! (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O C 2/m 2/m
- II/E.20-30 Sterryite Ag2Pb10(Sb,As)12S29 Pbam 2/m 2/m 2/m
- II/E.20-40 Playfairite Pb16Sb18S43 P 21/m 2/m
- II/E.20-50 Sorbyite Pb19(Sb,As)20S49 C 2/m 2/m
- II/E.20-60 Dadsonite Pb21Sb23S55Cl P 2,Pm,P 2/m Mono
General Sorbyite Information |
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 Chemical Formula: |
Pb19(Sb,As)20S49 | ||
| Composition: |
Molecular Weight = 5,737.49 gm | ||
| Antimony 3.61 % Sb | |||
| Arsenic 0.39 % As | |||
| Lead 68.62 % Pb | |||
| Sulfur 27.39 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Pb19Sb1.7As0.3S49 | ||
| Environment: |
Hydrothermal origin, in marble or limestone, replacing pyrite and sphalerite with other Pb-As.Sb sulfides. | ||
| IMA Status: |
Approved IMA 1967 | ||
| Locality: |
In Canada, from near Madoc, Ontario. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Henry Clifton Sorby (1826-1908), English chemist and the founder of metallography. | ||
| Synonym: |
IMA1966-031 | ||
Sorbyite Image | |||
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Images:
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Sorbyite Crystallography |
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| Axial Ratios: |
a:b:c =5.445:1:3.1994 | ||
| Cell Dimensions: |
a = 45.15, b = 8.292, c = 26.53, Z = 5; beta = 113.417° V = 9,114.34 Den(Calc)= 5.23 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.44(1), 3.38(0.9), 4.13(0.6), | ||
Physical Properties of Sorbyite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Lead gray, Black. | ||
| Density: |
5.52 | ||
| Diaphaniety: |
Opaque | ||
| Habit: |
Striated - Parallel lines on crystal surface or cleavage face. | ||
| Habit: |
Tabular - Form dimensions are thin in one direction. | ||
| Hardness: |
3.5-4 - Copper Penny-Fluorite | ||
| Luster: |
Metallic | ||
| Streak: |
metallic | ||
Optical Properties of Sorbyite |
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| RL Anisotrophism: |
Strong. | ||
| RL Color: |
White. | ||
| RL Pleochroism: |
Strong. | ||
Calculated Properties of Sorbyite |
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| Electron Density: |
relectron=4.45 gm/cc |
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| Fermion Index |
Fermion Index = 0.15369 Boson Index = 0.84631 |
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| Photoelectric: |
PESorbyite =1,253.58 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sorbyite is Not Radioactive |
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Sorbyite Classification |
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| Dana Class: |
3.6.12.1 (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 | |||
| (3.6.12)Dana Group | |||
| Strunz Class: |
II/E.20-50 II - Sulfides and sulphosalts | ||
| II/E - Sulfosalts (S : As,Sb,Bi = x), Sulfosalts with predominant Iron and Copper x = 2.0 | |||
| II/E.20 - Madocite - Dadsonite series | |||
Other Sorbyite 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 Sorbyite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Sorbyite using: Visit our Advertisers for Sorbyite : Translate Sorbyite Mineral Data : Ask about Sorbyite here : Print or Cut-and-Paste your Sorbyite Specimen Label here :
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