General Cornubite Information![]() Cu5(AsO4)2(OH)4 |
![]() Molecular Weight = 681.61 gm |
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Copper 46.61 % Cu 58.35 % CuO |
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Arsenic 21.98 % As 33.72 % As2O5 |
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Hydrogen 0.89 % H 7.93 % H2O |
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Oxygen 30.51 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Cu5(AsO4)2(OH)4•(H2O) |
![]() Rare secondary mineral in oxidized copper deposits. Dimorphous with cornwallite. |
![]() Approved IMA 1959 |
![]() Wheal Carpenter, Cornwall, England. Link to MinDat.org Location Data. |
![]() Named from Cornubia, the Latin name for Cornwall, source of the first specimens. |
![]() ICSD 30683 |
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PDF 41-1460 |
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Cornubite Crystallography![]() By Intensity(I/Io): 2.489(1), 2.562(1), 4.72(1), |
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Mouse
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| Physical Properties of Cornubite![]() Green, Apple green, Dark green. |
| Optical Properties of Cornubite![]() NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.1808) where Ncalc=Dcalc*KC+1 |
NCalc= 1.84 - from Gladstone-Dale relationship (KC = 0.1808) where Ncalc=Dmeas*KC+1 | Calculated Properties of Cornubite![]() Bulk Density (Electron Density)=4.69 gm/cc |
note: Specific Gravity of Cornubite =4.98 gm/cc. ![]() Fermion Index = 0.0001478015 |
Boson Index = 0.9998521985 ![]() PECornubite = 35.97 barns/electron |
U=PECornubite x rElectron Density= 168.71 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Cornubite is Not Radioactive | Cornubite Classification![]() 41.04.02.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
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(41.04)where (A B)5 (XO4)2 Zq |
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(41.04.02)Dana Group |
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![]() 08.BD.30 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BD -With only medium-sized cations, (OH, etc.):RO4 = 2:1 |
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| Other Cornubite Information![]() Links to other databases for Cornubite : |
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 16 - theimage Search for Cornubite using: Visit our Advertisers for Cornubite : A Bijoux Google Search for CornubiteAdam's Minerals Google Search for Cornubite Cape Minerals Google Search for Cornubite Dakota Matrix Minerals Google Search for Cornubite Excalibur Mineral Corp. Google Search for Cornubite Exceptional Minerals Google Search for Cornubite John Betts Fine Minerals Search for Cornubite McDougall Minerals Google Search for Cornubite Mineral News Website Link Rock and Mineral Shows Google Search for Cornubite Weinrich Minerals, Inc. Google Search for Cornubite Ask about Cornubite here : Print or Cut-and-Paste your Cornubite Specimen Label here :
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