Mineralogy Database

Ferripedrizite Mineral Data

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General Ferripedrizite Information

Help on Chemical Formula: Chemical Formula: NaLi2(Fe+++2Mg2Li)Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 839.32 gm
   Potassium   0.19 %  K     0.22 % K2O
   Sodium      2.11 %  Na    2.84 % Na2O
   Lithium     1.94 %  Li    4.17 % Li2O
   Calcium     0.24 %  Ca    0.33 % CaO
   Magnesium   4.31 %  Mg    7.16 % MgO
   Titanium    0.51 %  Ti    0.86 % TiO2
   Manganese   0.46 %  Mn    0.59 % MnO
   Aluminum    0.68 %  Al    1.28 % Al2O3
   Zinc        0.08 %  Zn    0.10 % ZnO
   Iron       16.57 %  Fe    7.28 % FeO / 15.60 % Fe2O3
   Silicon    26.77 %  Si   57.27 % SiO2
   Hydrogen    0.16 %  H     1.41 % H2O
   Oxygen     44.43 %  O
   Fluorine    1.56 %  F     1.56 % F
                -   %   F    -0.66 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.04Na0.52Na0.25Ca0.05Li1.7Li0.64Fe3+1.64Mg1.49Fe2+0.85Al0.21Ti0.09Mn2+0.07Zn0.01 Si8O22(OH)1.31F0.69
Help on Environment: Environment: Episyenites (non-magmatic hydrothermal rocks) replacing cordierite-bearing monzogranites. Related to Sodic-ferripedrizite as it is the higher temperature phase.
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Eastern Pedriza Massif, Arroyo de la Yedra Valley, Sierra de Guadarrama, Spain. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality and as the ferric end member from the IMA-CNMMN and its Amphibole Subcommittee.
Help on Synonym: Synonym: IMA2001-032