Mineralogy Database

Margarosanite Mineral Data

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General Margarosanite Information

Help on Chemical  Formula: Chemical Formula: Pb(Ca,Mn++)2Si3O9
Help on Composition: Composition: Molecular Weight = 516.23 gm
   Calcium    15.45 %  Ca   21.62 % CaO
   Manganese   0.85 %  Mn    1.10 % MnO
   Silicon    15.67 %  Si   33.52 % SiO2
   Lead       40.14 %  Pb   43.24 % PbO
   Oxygen     27.89 %  O
             ______        ______ 
             100.00 %       99.47 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbCa1.99Mn2+0.08Si2.88O9
Help on Environment: Environment: In a metamorphosed stratiform zinc deposit.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1916
Help on Locality: Locality: Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "pearl" and "tablet", in reference to its luster and lamellar habit.
Help on Name Pronunciation: Name Pronunciation: Margarosanite + Pronunciation Say MARGAROSANITE
Help on Synonym: Synonym: ICSD 18098
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