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General Pinchite Information |
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 Chemical Formula: |
Hg++5O4Cl2 | ||
| Composition: |
Molecular Weight = 1,137.85 gm | ||
| Mercury 88.14 % Hg 95.17 % HgO | |||
| Chlorine 6.23 % Cl 6.23 % Cl | |||
| - % Cl -1.41 % -O=Cl2 | |||
| Oxygen 5.62 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Hg5O4Cl2 | ||
| Environment: |
Secondary mineral in a hydrothermal mercury deposit. | ||
| IMA Status: |
Approved IMA 1974 | ||
| Locality: |
Terlingua, Brewster Co., Texas, USA. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for William Wallace Pinch (1940- ), American mineral collector of Rochester, New York, USA, who first noted the species. | ||
| Name Pronunciation: |
Pinchite  |
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| Synonym: |
ICSD 75935 | ||
| PDF 26-1267 | |||
Pinchite Image | |||
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Images:
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Pinchite Crystallography |
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| Axial Ratios: |
a:b:c =1.9031:1:1.918 | ||
| Cell Dimensions: |
a = 11.619, b = 6.105, c = 11.71, Z = 4; V = 830.64 Den(Calc)= 9.10 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: I bam | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.837(1), 2.695(0.8), 3.94(0.6), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Pinchite |
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| Cleavage: |
None | ||
| Color: |
Black, Black brown. | ||
| Density: |
9.5 | ||
| Hardness: |
1-2 - Between Talc and Gypsum | ||
| Streak: |
reddish brown | ||
Optical Properties of Pinchite |
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| Optical Data: |
NCalc= 2.24 - from Gladstone-Dale relationship (KC = 0.1368) where Ncalc=Dcalc*KC+1 NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.1368) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Pinchite |
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| Electron Density: |
Bulk Density (Electron Density)=7.45 gm/cc note: Specific Gravity of Pinchite =9.10 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.26 Boson Index = 0.74 |
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| Photoelectric: |
PEPinchite =1,523.65 barns/electron U=PEPinchite x rElectron Density=11356.85 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pinchite is Not Radioactive |
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Pinchite Classification |
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| Dana Class: |
10.05.03.01 (10)Oxyhalides and Hydroxyhalides | ||
| (10.05)where Am (O,OH)p Xq | |||
| (10.05.03)Dana Group | |||
| Strunz Class: |
03.DD.25 03 - HALIDES | ||
| 03.D - Oxyhalides, Hydroxyhalides and Related Double Halides | |||
| 03.DD -With Hg | |||
Other Pinchite Information |
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Pinchite : 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 15 - WWW-MINCRYST Search for Pinchite using: Visit our Advertisers for Pinchite : A Bijoux Google Search for PinchiteAdam's Minerals Google Search for Pinchite Cape Minerals Google Search for Pinchite Dakota Matrix Minerals Google Search for Pinchite Excalibur Mineral Corp. Google Search for Pinchite Exceptional Minerals Google Search for Pinchite John Betts Fine Minerals Search for Pinchite McDougall Minerals Google Search for Pinchite Mineral News Website Link Rock and Mineral Shows Google Search for Pinchite Weinrich Minerals, Inc. Google Search for Pinchite Ask about Pinchite here : Print or Cut-and-Paste your Pinchite Specimen Label here :
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