Friedrichite Mineral Data + 
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- 3.4.5.1 Aikinite PbCuBiS3 Pbnm 2/m 2/m 2/m
- 3.4.5.2 Krupkaite PbCuBi3S6 P mc21 mm2
- 3.4.5.3 Gladite PbCuBi5S9 P nma 2/m 2/m 2/m
- 3.4.5.4 Hammarite Pb2Cu2Bi4S9(?) Pbnm 2/m 2/m 2/m
- 3.4.5.5 Friedrichite Pb5Cu5Bi7S18 Pb21m mm2
- 3.4.5.6 Pekoite PbCuBi11(S,Se)18 P 21am mm2
- 3.4.5.7 Lindstromite Pb3Cu3Bi7S15 Pbnm 2/m 2/m 2/m
- 3.4.5.8 IMA2000-044! Pb1.6Cu1.6Bi6.4S12 P mc21 mm2
- II/E.30-10 Aikinite PbCuBiS3 Pbnm 2/m 2/m 2/m
- II/E.30-15 Soucekite PbCuBi(S,Se)3 Pn21m mm2
- II/E.30-20 Friedrichite Pb5Cu5Bi7S18 Pb21m mm2
- II/E.30-25 Emilite! Cu10.7Pb10.7Bi21.3S48 P mc21 mm2
- II/E.30-30 Hammarite Pb2Cu2Bi4S9(?) Pbnm 2/m 2/m 2/m
- II/E.30-40 Lindstromite Pb3Cu3Bi7S15 Pbnm 2/m 2/m 2/m
- II/E.30-50 Krupkaite PbCuBi3S6 P mc21 mm2
- II/E.30-54 Paarite! Cu1.7Pb1.7Bi6.3S12 Pmcn 2/m 2/m 2/m
- II/E.30-60 Gladite PbCuBi5S9 P nma 2/m 2/m 2/m
- II/E.30-70 Pekoite PbCuBi11(S,Se)18 P 21am mm2
General Friedrichite Information |
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 Chemical Formula: |
Pb5Cu5Bi7S18 | ||
| Composition: |
Molecular Weight = 3,393.78 gm | ||
| Copper 9.36 % Cu | |||
| Bismuth 43.10 % Bi | |||
| Lead 30.53 % Pb | |||
| Sulfur 17.01 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Pb5Cu5Bi7S18 | ||
| Environment: |
As aggregates of granular crystals, in boulders of vein quartz which occur in the scree of a landslip. | ||
| IMA Status: |
Approved IMA 1978 | ||
| Locality: |
Near the emerald beryl deposit in the "Sedl" region, east of the Haqbachtan, Salzburg, Austria. Link to MinDat.org Location Data. | ||
| Name Origin: |
For Professor Dr.-Ing O.M. Friedrich, of the Mining University, Leoben, Styria, Austria. | ||
Friedrichite Image | |||
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Images:
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Friedrichite Crystallography |
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| Axial Ratios: |
a:b:c =2.9047:1:0.3442 | ||
| Cell Dimensions: |
a = 33.84, b = 11.65, c = 4.01, Z = 6; V = 1,580.89 Den(Calc)= 21.39 | ||
| Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Pb21m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.161(1), 3.584(1), 3.644(1), | ||
Physical Properties of Friedrichite |
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| Color: |
Silver gray. | ||
| Density: |
6.98 | ||
| Diaphaniety: |
Opaque | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Metallic | ||
Optical Properties of Friedrichite |
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| RL Anisotrophism: |
Strong in oil, distinct in air. | ||
| RL Color: |
Creamy yellowish white in air, more pinkish in oil. | ||
Calculated Properties of Friedrichite |
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| Electron Density: |
relectron=18.0 gm/cc |
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| Fermion Index |
Fermion Index = 0.06873 Boson Index = 0.93127 |
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| Photoelectric: |
PEFriedrichite =1,390.76 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Friedrichite is Not Radioactive |
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Friedrichite Classification |
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| Dana Class: |
3.4.5.5 (3)Sulfides - Sulfosalts | ||
| (3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (3.4.5)Aikinite Group (Orthorhombic containing Pb, Cu, Bi, & S) | |||
| Strunz Class: |
II/E.30-20 II - Sulfides and sulphosalts | ||
| II/E - Sulfosalts (S : As,Sb,Bi = x) Lead-Sulfosalts (Pb-Cu/Ag) with predominant Vismut x = 6.0 - 1.6 | |||
| II/E.30 - Aikinite - Pekoite series | |||
Other Friedrichite 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 Friedrichite : 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 Friedrichite using: Visit our Advertisers for Friedrichite : Translate Friedrichite Mineral Data : Ask about Friedrichite here : Print or Cut-and-Paste your Friedrichite Specimen Label here :
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