Mineralogy Database

Franklinphilite Mineral Data

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General Franklinphilite Information

Help on Chemical Formula: Chemical Formula: (K,Na)4(Mn++,Mg,Zn)48(Si,Al)72(O,OH)216•6(H2O)
Help on Composition: Composition: Molecular Weight = 8,207.63 gm
   Potassium   1.24 %  K     1.49 % K2O
   Sodium      0.31 %  Na    0.42 % Na2O
   Magnesium   3.91 %  Mg    6.48 % MgO
   Manganese  17.47 %  Mn   22.56 % MnO
   Aluminum    1.91 %  Al    3.60 % Al2O3
   Zinc        4.78 %  Zn    5.95 % ZnO
   Iron        5.51 %  Fe    7.88 % Fe2O3
   Silicon    20.81 %  Si   44.51 % SiO2
   Hydrogen    0.80 %  H     7.11 % H2O
   Oxygen     43.28 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2.6Na1.1Mn2+26.1Mg13.2Zn6Fe3+2.7Si60.8Al5.8Fe3+5.4O163.2(OH)52.8�6(H2O)
Help on Environment: Environment: Metamorphosed, weathered zinc deposit. The manganese analog of stipnomelane.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Franklin mine, Sussex County, New Jersey. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality and from the Greek philos = 'friend.' The 'friends of Franklin' are those scientific investigators who helped study the unique mineralogy and geology of th is deposit.
Help on Name Pronunciation: Name Pronunciation: Franklinphilite + Pronunciation Say FRANKLINPHILITE
Help on Synonym: Synonym: IMA1990-050