Mineralogy Database

Donpeacorite Mineral Data

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General Donpeacorite Information

Help on Chemical  Formula: Chemical Formula: (Mn,Mg)MgSi2O6
Help on Composition: Composition: Molecular Weight = 223.75 gm
   Magnesium  13.58 %  Mg   22.52 % MgO
   Manganese  18.41 %  Mn   23.78 % MnO
   Silicon    25.10 %  Si   53.71 % SiO2
   Oxygen     42.90 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.75Mg1.25Si2O6
Help on Environment: Environment: In manganese-rich siliceous marbles metamorphosed to the upper amphibolite facies.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: In the Balmat No. 4 mine, Balmat, St. Lawrence Co., New York, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Donald R. Peacor (1937- ), University of Michigan, Ann Arbor, Michigan, USA.
Help on Name Pronunciation: Name Pronunciation: Donpeacorite + Pronunciation Say DONPEACORITE
Help on Synonym: Synonym: ICSD 30676
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