Mineralogy Database

Poppiite Mineral Data

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General Poppiite Information

Help on Chemical Formula: Chemical Formula: Ca2(V+++,Fe+++,Mg)(V+++,Al)2(Si,Al)3(O,OH)14
Help on Composition: Composition: Molecular Weight = 2,128.85 gm
   Potassium   0.06 %  K     0.07 % K2O
   Rubidium    0.08 %  Rb    0.09 % Rb2O
   Sodium      0.29 %  Na    0.39 % Na2O
   Calcium    14.46 %  Ca   20.23 % CaO
   Magnesium   0.89 %  Mg    1.48 % MgO
   Titanium    0.09 %  Ti    0.15 % TiO2
   Manganese   1.52 %  Mn    1.97 % MnO
   Aluminum    2.14 %  Al    4.05 % Al2O3
   Vanadium   19.50 %  V    28.69 % V2O3
   Iron        2.68 %  Fe    3.83 % Fe2O3
   Copper      0.12 %  Cu    0.15 % CuO
   Silicon    15.42 %  Si   32.99 % SiO2
   Hydrogen    0.66 %  H     5.92 % H2O
   Oxygen     42.09 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca7.68Na0.27K0.03Rb0.02V3+1.26Fe3+1.02Mg0.78Mn2+0.59Al0.31Cu0.04V3+6.89Al1.07 Ti0.04Si11.69Al0.31O42(OH)14
Help on Environment: Environment: Massive braunite + quartz + hematite aggregates under prehnite-pumpellyite metamorphic facies conditions. Associated with roscoeite. Pumpellyite group.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Gambatesa Manganese mine, Val Graveglia, Genova, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in memory of Luciano Poppi, Professor of Mineralogy at Modena and Reggio Emilia University, Italy.
Help on Synonym: Synonym: IMA2005-018