Mineralogy Database

Irhtemite Mineral Data

Search Webmineral :
  

General Irhtemite Information

Help on Chemical Formula: Chemical Formula: Ca4Mg(AsO3OH)2(AsO4)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 814.37 gm
   Calcium    19.69 %  Ca   27.54 % CaO
   Magnesium   2.98 %  Mg    4.95 % MgO
   Arsenic    36.80 %  As   56.45 % As2O5
   Hydrogen    1.24 %  H    11.06 % H2O
   Oxygen     39.29 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4Mg(AsO3OH)2(AsO4)2•4(H2O)
Help on Environment: Environment: Probably formed from the dehydration of picopharmacolite.
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: Irhtem ore deposit, Morocco. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Irhtemite + Pronunciation Say IRHTEMITE