Mineralogy Database

Calcioandyrobertsite-2O Mineral Data

Search Webmineral :
  
Advertisment

General Calcioandyrobertsite-2O Information

Help on Chemical  Formula: Chemical Formula: KCaCu5(AsO4)4[As(OH)2O2]•2(H2O)
Help on Composition: Composition: Molecular Weight = 1,129.55 gm
   Potassium   3.46 %  K     4.17 % K2O
   Calcium     3.55 %  Ca    4.96 % CaO
   Copper     28.13 %  Cu   31.67 % Cu2O
   Arsenic    33.16 %  As   50.87 % As2O5
   Hydrogen    0.54 %  H     4.78 % H2O
   Oxygen     31.16 %  O
             ______        ______ 
             100.00 %       96.46 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KCaCu5(AsO4)4(OH)2AsO2•2(H2O)
Help on Environment: Environment: Occurs in a specimen of quartz gangue. Polymorph of calcioandyrobertsite; structure.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Tsumeb mine, Namibia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the -2O polytype of calcio-andyrobertsite-1M
Help on Name Pronunciation: Name Pronunciation: Calcioandyrobertsite-2O + Pronunciation Say CALCIOANDYROBERTSITE-2O
Help on Synonym: Synonym: Calcio-andyrobertsite-2O - Renamed Calcioandyrobertsite-2O by Mineralogical Record, v39 (2008), p131
  IMA2000-011