Mineralogy Database

Winchite Mineral Data

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General Winchite Information

Help on Chemical Formula: Chemical Formula: [ ](CaNa)Mg4(Al,Fe3+)Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 828.18 gm
   Potassium   0.47 %  K     0.57 % K2O
   Sodium      2.61 %  Na    3.52 % Na2O
   Calcium     6.15 %  Ca    8.60 % CaO
   Magnesium  12.53 %  Mg   20.78 % MgO
   Manganese   0.53 %  Mn    0.69 % MnO
   Aluminum    1.01 %  Al    1.91 % Al2O3
   Iron        3.71 %  Fe    5.30 % Fe2O3
   Silicon    26.38 %  Si   56.44 % SiO2
   Hydrogen    0.24 %  H     2.18 % H2O
   Oxygen     46.36 %  O
             ______        ______ 
             100.00 %       99.98 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.27Na0.94K0.1Mg4.27Fe3+0.55Al0.09Mn2+0.08Si7.78Al0.22O22(OH)2
Help on Environment: Environment: Metamorphosed Mn deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1906
Help on Locality: Locality: Kajlidongri, Jhabua, Madhya Pradesh, India. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition and for Howard J. Winch, Geological survey of India.
Help on Name Pronunciation: Name Pronunciation: Winchite Say WINCHITE
Help on Synonym: Synonym: Aluminowinchite
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