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	 Cobalttsumcorite Mineral Data  |  |  | 
   
| General Cobalttsumcorite  Information  | 
|  Chemical  Formula: | Pb(Co,Fe)2(AsO4)2(OH,H2O)2 | 
|  Composition: | Molecular Weight = 607.66 gm | 
|  | Iron       6.43 %  Fe    8.28 % FeO | 
|  | Cobalt     7.76 %  Co   10.92 % Co2O3 | 
|  | Nickel     3.86 %  Ni    4.92 % NiO | 
|  | Arsenic   24.66 %  As   37.82 % As2O5 | 
|  | Hydrogen   0.53 %  H     4.74 % H2O | 
|  | Lead      30.69 %  Pb   33.06 % PbO | 
|  | Oxygen    26.07 %  O | 
|  | ______        ______ | 
|  | 100.00 %       99.74 % = TOTAL OXIDE | 
|  Empirical Formula: | Pb0.9Co0.8Fe2+0.7Ni0.4(AsO4)2(OH)0.6(H2O)1.3 | 
|  Environment: | Secondary mineral found in dump material from an oxidation zone. | 
|  IMA Status: | Approved IMA 1999 (Dana # Added) | 
|  Locality: | "Am Roten Berg" mining area, 4.8 km SW of Schneeberg, Germany. Link to MinDat.org Location Data. | 
|  Name Origin: | Named for the chemical and structural relationship to tsumcorite | 
|  Synonym: | IMA1999-029 | 
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