Mineralogy Database

Charmarite-3T Mineral Data

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General Charmarite-3T Information

Help on Chemical  Formula: Chemical Formula: Mn++4Al2(CO3)(OH)12•3(H2O)
Help on Composition: Composition: Molecular Weight = 591.86 gm
   Manganese  37.13 %  Mn   47.94 % MnO
   Aluminum    9.12 %  Al   17.23 % Al2O3
   Hydrogen    3.07 %  H    27.39 % H2O
   Carbon      2.03 %  C     7.44 % CO2
   Oxygen     48.66 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+4Al2(CO3)(OH)12•3(H2O)
Help on Environment: Environment: In silicate and carbonate cavities and in pegmatites in nepheline syenite. The Mn-dominant analogue of caresite and quintinite.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: Mt. St.-Hilaire, QUE, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Charles (1917-) and Marcelle (1918-) Weber, amateur mineralogist of Guilford, CT, who contributed extensively to the knowledge of Mt. St.-Hilaire and also found the minera l.
Help on Synonym: Synonym: IMA1992-027