| Felbertalite Mineral Data |
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- 3.7.14.1 Junoite Pb3Cu2Bi8(S,Se)16 C 2/m 2/m
- 3.7.14.2 Felbertalite ! Cu2Pb6Bi8S19 C 2/m 2/m
- II/E.34-08 Mozgovaite! PbBi4(S,Se)7 Bbmm 2/m 2/m 2/m
- II/E.34-10 Cosalite Pb2Bi2S5 Pbnm 2/m 2/m 2/m
- II/E.34-20 Proudite (Pb,Cu)8Bi9-10(S,Se)22 C 2/m 2/m
- II/E.34-30 Weibullite Pb6Bi8(S,Se)18 P nma 2/m 2/m 2/m
- II/E.34-60 Cannizzarite Pb4Bi6S13 C 2/m 2/m
- II/E.34-65 Wittite Pb3Bi4(S,Se)9 P 2/m 2/m
- II/E.34-70 Nordstromite Pb3CuBi7(S10Se4) P 21/m 2/m
- II/E.34-80 Junoite Pb3Cu2Bi8(S,Se)16 C 2/m 2/m
- II/E.34-85 Felbertalite Cu2Pb6Bi8S19 C 2/m 2/m
- II/E.34-90 Watkinsonite PbCu2Bi4(Se,S)8 Pm ? m
- II/E.34-100 Paderaite AgPb2Cu6Bi11S22 P 21/m 2/m
- II/E.34-110 Galenobismutite PbBi2S4 Pnam 2/m 2/m 2/m
General Felbertalite Information |
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 Chemical Formula: |
Cu2Pb6Bi8S19 | ||
| Composition: |
Molecular Weight = 3,599.51 gm | ||
| Cadmium 0.31 % Cd | |||
| Copper 3.53 % Cu | |||
| Silver 1.20 % Ag | |||
| Bismuth 48.19 % Bi | |||
| Lead 29.93 % Pb | |||
| Sulfur 16.84 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Cu2Ag0.4Cd0.1Pb5.2Bi8.3S18.9 | ||
| Environment: |
Quartz-scheelite discordant ore veins. Structure related to junoite. | ||
| IMA Status: |
Approved IMA 1999 (Dana # Added) | ||
| Locality: |
Felbertal valley, Salzburg Province, Austria. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
| Synonym: |
ICSD 411110 | ||
| IMA1999-042 | |||
Search for Felbertalite Images | |||
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Images:
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Felbertalite Crystallography |
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| Axial Ratios: |
a:b:c =6.824:1:5.1213 | ||
| Cell Dimensions: |
a = 27.6367, b = 4.0499, c = 20.7409, Z = 2; beta = 131.258° V = 1,745.14 Den(Calc)= 6.85 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.791(0.8)(223), 2.32(0.8)(116), 1.744(0.8)(626),2.031(0.8)(020), 2.062(0.8)(117), 2.096(0.8)(11.1.7), 2.918(0.8)(510), 3.382(0.8)(406), 3.507(0.8)(313), | ||
Physical Properties of Felbertalite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Gray. | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. | ||
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. | ||
| Hardness: |
3.5-4 - Copper Penny-Fluorite | ||
| Luster: |
Metallic | ||
| Streak: |
grayish black | ||
Calculated Properties of Felbertalite |
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| Electron Density: |
relectron=5.71 gm/cc |
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| Fermion Index |
Fermion Index = 0.06819 Boson Index = 0.93181 |
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| Photoelectric: |
PEFelbertalite =1,489.49 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Felbertalite is Not Radioactive |
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Felbertalite Classification |
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| Dana Class: |
3.7.14.2 (3)Sulfides - Sulfosalts | ||
| (3.7)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (3.7.14)Dana Group | |||
| Strunz Class: |
II/E.34-85 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.34 - Cosalite - Galenobismuthite | |||
Other Felbertalite Information |
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| References: |
NAME( AmMin, Vol 87, p 765) PHYS. PROP.(AmMin, Vol 87, p 765) | ||
| See Also: |
Links to other databases for Felbertalite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Felbertalite using: Visit our Advertisers for Felbertalite : Translate Felbertalite Mineral Data : Ask about Felbertalite here : Print or Cut-and-Paste your Felbertalite Specimen Label here :
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