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Calcioandyrobertsite-1M Mineral Data
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General Calcioandyrobertsite-1M Information
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Chemical Formula: |
KCaCu5(AsO4)4[As(OH)2O2]•2(H2O) |
Composition: |
Molecular Weight = 1,129.55 gm |
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Potassium 3.46 % K 4.17 % K2O |
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Calcium 3.55 % Ca 4.96 % CaO |
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Copper 28.13 % Cu 35.21 % CuO |
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Arsenic 33.16 % As 50.87 % As2O5 |
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Hydrogen 0.54 % H 4.78 % H2O |
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Oxygen 31.16 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
KCaCu5(AsO4)4(As(OH)2O2)•2(H2O) |
Environment: |
Single specimen found at the mine. Forms a series with andyrobertsite. |
IMA Status: |
Approved IMA 1999 (Dana # Added) |
Locality: |
Tsumeb Mine, Tsumeb, Namibia. Link to MinDat.org Location Data. |
Name Origin: |
Named after Andrew C. Roberts (1950-), mineralogist with the Geological Survey of Canada. |
Name Pronunciation: |
Calcioandyrobertsite-1M + Pronunciation
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Synonym: |
Calcio-andyrobertsite-1M - Renamed Calcioandyrobertsite-1M by Mineralogical Record, v39 (2008), p131 |
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IMA1997-022 |
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