Mineralogy Database

Schallerite Mineral Data

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General Schallerite Information

Help on Chemical Formula: Chemical Formula: Mn++16[As+++O2OH][Si12O30](OH)14
Help on Composition: Composition: Molecular Weight = 2,305.90 gm
   Manganese  38.12 %  Mn   49.22 % MnO
   Silicon    14.62 %  Si   31.27 % SiO2
   Arsenic     9.75 %  As   12.87 % As2O3
   Hydrogen    0.74 %  H     6.64 % H2O
   Oxygen     36.77 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+16As3Si12O36(OH)17
Help on Environment: Environment: Metamorphosed zinc deposit. Dimorphous with nelenite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1925
Help on Locality: Locality: 700 ft level, Franklin mine, Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Wakdemar Theodore Shaller ((1852-1967), mineralogist, U. S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Schallerite + Pronunciation Say SCHALLERITE