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Manganohornesite Mineral Data
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General Manganohornesite Information
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 Chemical Formula: |
(Mn,Mg)3(AsO4)2•8(H2O) |
| Composition: |
Molecular Weight = 563.80 gm |
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Magnesium 3.23 % Mg 5.36 % MgO |
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Manganese 21.92 % Mn 28.31 % MnO |
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Arsenic 26.58 % As 40.77 % As2O5 |
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Hydrogen 2.86 % H 25.56 % H2O |
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Oxygen 45.40 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+2.25Mg0.75(AsO4)2•8(H2O) |
| IMA Status: |
Valid Species (Pre-IMA) 1951 |
| Locality: |
Langban, varmland, Sweden. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition and relationship to hornesite. |
| Synonym: |
Manganese-hornesite - Renamed as Manganohornesite by Mineralogical Record, v330 (2008), p131 |
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