General Geerite Information![]() Cu8S5 |
![]() Molecular Weight = 668.70 gm |
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Copper 76.02 % Cu |
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Sulfur 23.98 % S |
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100.00 % |
![]() Cu8S5 |
![]() Replacing sphalerite along cleavage traces. |
![]() Approved IMA 1980 |
![]() In DeKalb Township, St. Lawrence Co., New York, and from Cuchillo, Winston district, Sierra Co., New Mexico, USA. Link to MinDat.org Location Data. |
![]() To honor the original collector, Adam Geer, of Utica, New York, USA. |
![]() Geerite |
![]() | | Search for Geerite Images
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| | Geerite Crystallography![]() a:c = 1:12.22976 |
![]() a = 3.83, c = 46.84, Z = 3; V = 595.04 Den(Calc)= 5.60 |
![]() TrigonalSpace Group: R 3m, R 3m, or R 32 |
![]() By Intensity(I/Io): 3.128(1), 1.918(0.5), 1.637(0.3), |
| Physical Properties of Geerite![]() White, Blue gray. |
![]() Opaque |
![]() Platy - Sheet forms (e.g. micas). |
![]() 3.5-4 - Copper Penny-Fluorite |
![]() Metallic |
| Optical Properties of Geerite![]() Moderate, in yellow. |
![]() Bluish white. |
![]() Weak. |
| Calculated Properties of Geerite![]() Bulk Density (Electron Density)=5.23 gm/cc |
note: Specific Gravity of Geerite =5.60 gm/cc. ![]() Fermion Index = 0.0017982333 |
Boson Index = 0.9982017667 ![]() PEGeerite = 35.58 barns/electron |
U=PEGeerite x rElectron Density= 185.91 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Geerite is Not Radioactive | Geerite Classification![]() 02.04.07.06 (02)Sulfides - Including Selenides and Tellurides |
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(02.04)where Am Bn Xp, with (m+n):p=2:1 |
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(02.04.07)Chalcocite Group ([Cu]2-x S] formulae) |
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![]() 02.BA.05c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BA -With Cu, Ag, Au |
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| Other Geerite Information![]() NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1) |
![]() Links to other databases for Geerite : |
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 Geerite using: Visit our Advertisers for Geerite : A Bijoux Google Search for GeeriteAdam's Minerals Google Search for Geerite Cape Minerals Google Search for Geerite Dakota Matrix Minerals Google Search for Geerite Excalibur Mineral Corp. Google Search for Geerite Exceptional Minerals Google Search for Geerite John Betts Fine Minerals Search for Geerite McDougall Minerals Google Search for Geerite Mineral News Website Link Rock and Mineral Shows Google Search for Geerite Weinrich Minerals, Inc. Google Search for Geerite Ask about Geerite here : Print or Cut-and-Paste your Geerite Specimen Label here :
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