Mineralogy Database

Avdoninite Mineral Data

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General Avdoninite Information

Help on Chemical  Formula: Chemical Formula: K2Cu5Cl8(OH)4•H2O
Help on Composition: Composition: Molecular Weight = 765.55 gm
   Potassium  10.01 %  K    12.06 % K2O
   Copper     41.50 %  Cu   51.95 % CuO
   Hydrogen    0.78 %  H     6.98 % H2O
   Chlorine   37.46 %  Cl   37.46 % Cl
                -   %   Cl   -8.45 % -O=Cl2   
   Oxygen     10.24 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K1.96Cu5Cl8.09(OH)3.87•1.03(H2O)
Help on Environment: Environment: Fumarole exhalation sediments.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Yadovitaya fumarole in the Second Cinder Cone at the Northern Breach of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vladimir Nikolaevich Avdonin (b 1925), a senior researcher of the Ural Geological Museum of the Ural State Mining University.
Help on Synonym: Synonym: IMA2005-046a