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Donpeacorite Mineral Data
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General Donpeacorite Information
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 Chemical Formula: |
(Mn,Mg)MgSi2O6 |
| Composition: |
Molecular Weight = 223.75 gm |
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Magnesium 13.58 % Mg 22.52 % MgO |
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Manganese 18.41 % Mn 23.78 % MnO |
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Silicon 25.10 % Si 53.71 % SiO2 |
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Oxygen 42.90 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+0.75Mg1.25Si2O6 |
| Environment: |
In manganese-rich siliceous marbles metamorphosed to the upper amphibolite facies. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
In the Balmat No. 4 mine, Balmat, St. Lawrence Co., New York, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Donald R. Peacor (1937- ), University of Michigan, Ann Arbor, Michigan, USA. |
| Name Pronunciation: |
Donpeacorite + Pronunciation  |
| Synonym: |
ICSD 30676 |
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PDF 38-358 |
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