General Koutekite Information Chemical Formula: |
Cu5As2 |
Composition: |
Molecular Weight = 467.57 gm |
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Copper 67.95 % Cu |
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Arsenic 32.05 % As |
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______ |
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100.00 % |
Empirical Formula: |
Cu5As2 |
Environment: |
Arsenical copper deposits. |
IMA Status: |
Valid Species (Pre-IMA) 1958 |
Locality: |
Cerny Dul, Czech Republic. Link to MinDat.org Location Data. |
Name Origin: |
Named for Jaromir Koutek (1902-1983), Czech mineralogist. |
Name Pronunciation: |
Koutekite + Pronunciation |
Synonym: |
ICSD 26253 |
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PDF 46-1394 |
| | Koutekite Image
Images:
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Koutekite Crystallography Axial Ratios: |
a:c = 1:1.26324 |
Cell Dimensions: |
a = 11.51, c = 14.54, Z = 18; V = 1,668.19 Den(Calc)= 8.38 |
Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc |
X Ray Diffraction: |
By Intensity(I/Io): 2.001(1), 2.044(0.9), 2.089(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Koutekite Color: |
Gray blue. |
Density: |
8.48 |
Diaphaneity: |
Opaque |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Hardness: |
3.5 - Copper Penny |
Luster: |
Metallic |
Streak: |
black |
| Optical Properties of Koutekite RL Anisotrophism: |
Strong. |
RL Color: |
Bluish gray. |
Reflectivity |
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| Calculated Properties of Koutekite Electron Density: |
Bulk Density (Electron Density)=7.56 gm/cc |
note: Specific Gravity of Koutekite =8.38 gm/cc. Fermion Index: |
Fermion Index = 0 |
Boson Index = 1 Photoelectric: |
PEKoutekite = 54.50 barns/electron |
U=PEKoutekite x rElectron Density= 412.19 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Koutekite is Not Radioactive | Koutekite Classification Dana Class: |
02.03.01.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.03)where Am Bn Xp, with (m+n):p=5:2 |
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(02.03.01)Dana Group |
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Strunz Class: |
02.AA.10d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.A - Simple Sulfides, Selenides, etc |
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02.AA -Alloys of metalloids with Cu, Ag, Sn, Au |
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| Other Koutekite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Koutekite : |
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 Koutekite using: Visit our Advertisers for Koutekite : A Bijoux Google Search for KoutekiteAdam's Minerals Google Search for Koutekite Cape Minerals Google Search for Koutekite Dakota Matrix Minerals Google Search for Koutekite Excalibur Mineral Corp. Google Search for Koutekite Exceptional Minerals Google Search for Koutekite John Betts Fine Minerals Search for Koutekite McDougall Minerals Google Search for Koutekite Mineral News Website Link Rock and Mineral Shows Google Search for Koutekite Weinrich Minerals, Inc. Google Search for Koutekite Ask about Koutekite here : Print or Cut-and-Paste your Koutekite Specimen Label here :
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