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Arsenoclasite Mineral Data
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General Arsenoclasite Information
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 Chemical Formula: |
Mn5(AsO4)2(OH)4 |
| Composition: |
Molecular Weight = 620.56 gm |
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Manganese 44.27 % Mn 57.16 % MnO |
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Arsenic 24.15 % As 37.04 % As2O5 |
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Hydrogen 0.65 % H 5.81 % H2O |
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Oxygen 30.94 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+5(AsO4)2(OH)4 |
| Environment: |
A rare fissure mineral in a metamorphosed Fe-Mn orebody (Langban, Sweden); in a sedimentary Fe-Mn deposit (Iron Monarch quarry, Australia). |
| IMA Status: |
Valid Species (Pre-IMA) 1931 |
| Locality: |
At Langban, Varmland, Sweden. Crystallized from the Iron Monarch quarry, Iron Knob, South Australia. Link to MinDat.org Location Data. |
| Name Origin: |
Named from "arsenic" and the Greek for "breaking," for its excellent cleavage. |
| Name Pronunciation: |
Arsenoclasite + Pronunciation  |
| Synonym: |
ICSD 15210 |
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PDF 20-704 |
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