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General Polhemusite Information |
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 Chemical Formula: |
(Zn,Hg)S | ||
| Composition: |
Molecular Weight = 131.26 gm | ||
| Zinc 37.36 % Zn | |||
| Mercury 38.21 % Hg | |||
| Sulfur 24.43 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Zn0.75Hg0.25S | ||
| Environment: |
As part of a replacement deposit of stibnite. | ||
| IMA Status: |
Approved IMA 1978 | ||
| Locality: |
B and B deposit, Big Creek district, Valley County, Idaho, USA Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Clyde Polhemus Ross, American economic geologist. | ||
| Name Pronunciation: |
Polhemusite + Pronunciation  |
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Polhemusite Image | |||
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Images:
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Polhemusite Crystallography |
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| Axial Ratios: |
a:c = 1:1.6923 | ||
| Cell Dimensions: |
a = 8.71, c = 14.74, Z = 24; V = 1,118.24 Den(Calc)= 4.68 | ||
| Crystal System: |
Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 4/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.08(1), 1.888(0.8), 3.16(0.7), | ||
Physical Properties of Polhemusite |
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| Cleavage: |
{???} Indistinct | ||
| Color: |
Black. | ||
| Density: |
4.93 | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Adamantine - Resinous | ||
Optical Properties of Polhemusite |
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| RL Anisotrophism: |
Moderate in air, strong in oil. | ||
| RL Color: |
Gray, with intense red internal reflections. | ||
| RL Pleochroism: |
Very slightly brownish gray to slightly lavender-gray. | ||
Calculated Properties of Polhemusite |
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| Electron Density: |
Bulk Density (Electron Density)=4.17 gm/cc note: Specific Gravity of Polhemusite =4.68 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.13 Boson Index = 0.87 |
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| Photoelectric: |
PEPolhemusite = 628.11 barns/electron U=PEPolhemusite x rElectron Density=2,620.28 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Polhemusite is Not Radioactive |
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Polhemusite Classification |
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| Dana Class: |
02.08.03.01 (02)Sulfides - Including Selenides and Tellurides | ||
| (02.08)where Am Bn Xp, with (m+n):p=1:1 | |||
| (02.08.03)Dana Group | |||
| Strunz Class: |
02.CB.05c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf | ||
| 02.C - Metal Sulfides, M:S = 1:1 (and similar) | |||
| 02.CB -With Zn, Fe, Cu, Ag, Au, etc | |||
Other Polhemusite 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 Polhemusite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Polhemusite using: Visit our Advertisers for Polhemusite : A Bijoux Google Search for PolhemusiteAdam's Minerals Google Search for Polhemusite Cape Minerals Google Search for Polhemusite Dakota Matrix Minerals Google Search for Polhemusite Excalibur Mineral Corp. Google Search for Polhemusite Exceptional Minerals Google Search for Polhemusite John Betts Fine Minerals Search for Polhemusite McDougall Minerals Google Search for Polhemusite Mineral News Website Link Rock and Mineral Shows Google Search for Polhemusite Weinrich Minerals, Inc. Google Search for Polhemusite Ask about Polhemusite here : Print or Cut-and-Paste your Polhemusite Specimen Label here :
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