Eskimoite Mineral Data + 
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- 3.6.2.1 Eskimoite Ag7Pb10Bi15S36 Am m
- II/E.31-10 Xilingolite Pb3Bi2S6 C 2/m 2/m
- II/E.31-20 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m
- II/E.31-30 Bursaite Pb5Bi4S11 Bbmm 2/m 2/m 2/m
- II/E.31-40 Ourayite Pb4Ag3Bi5S13 Bbmm 2/m 2/m 2/m
- II/E.31-50 Eskimoite Ag7Pb10Bi15S36 Am m
- II/E.31-60 Vikingite Ag5Pb8Bi13S30 C 2/m 2/m
- II/E.31-70 Schirmerite Ag3Pb3Bi9S18toAg3Pb6Bi7S18 Bbmm 2/m 2/m 2/m
- II/E.31-80 Treasurite Ag7Pb6Bi15S32 B2/m 2/m
- II/E.31-90 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m
General Eskimoite Information |
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 Chemical Formula: |
Ag7Pb10Bi15S36 | ||
| Composition: |
Molecular Weight = 7,116.16 gm | ||
| Silver 10.61 % Ag | |||
| Bismuth 44.05 % Bi | |||
| Lead 29.12 % Pb | |||
| Sulfur 16.22 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Ag7Pb10Bi15S36 | ||
| Environment: |
In a cryolite deposit. | ||
| IMA Status: |
Approved IMA 1977 | ||
| Locality: |
Ivigutut, Greenland. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the Eskimos, the natives of Greenland. | ||
Eskimoite Image | |||
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Images:
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Eskimoite Crystallography |
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| Axial Ratios: |
a:b:c =7.3643:1:3.2826 | ||
| Cell Dimensions: |
a = 30.194, b = 4.1, c = 13.459, Z = 1; beta = 93.35° V = 1,663.32 Den(Calc)= 7.10 | ||
| Crystal System: |
Monoclinic - DomaticH-M Symbol (m) Space Group: Am | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.36(1), 2.87(0.6), 2.96(0.5), | ||
Physical Properties of Eskimoite |
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| Color: |
Black, Gray. | ||
| Density: |
7.1 | ||
| Diaphaniety: |
Opaque | ||
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. | ||
| Habit: |
Lamellar - Thin laminae producing a lamellar structure. | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Metallic | ||
Optical Properties of Eskimoite |
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| RL Anisotrophism: |
Distinct to strong, light gray to steel bluish black. | ||
| RL Color: |
Galena white. | ||
| RL Pleochroism: |
Absent in air, absent to weak in oil. | ||
Calculated Properties of Eskimoite |
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| Electron Density: |
relectron=5.93 gm/cc |
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| Fermion Index |
Fermion Index = 0.06556 Boson Index = 0.93444 |
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| Photoelectric: |
PEEskimoite =1,414.72 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Eskimoite is Not Radioactive |
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Eskimoite Classification |
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| Dana Class: |
3.6.2.1 (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 | |||
| (3.6.2)Dana Group | |||
| Strunz Class: |
II/E.31-50 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.31 - Xilingolite - Gustavite series | |||
Other Eskimoite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Eskimoite : 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 Eskimoite using: Visit our Advertisers for Eskimoite : Translate Eskimoite Mineral Data : Ask about Eskimoite here : Print or Cut-and-Paste your Eskimoite Specimen Label here :
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