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Pyrolusite Mineral Data
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General Pyrolusite Information
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 Chemical Formula: |
MnO2 |
| Composition: |
Molecular Weight = 86.94 gm |
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Manganese 63.19 % Mn 100.00 % MnO2 |
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Oxygen 36.81 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn4+O2 |
| Environment: |
Sedimentary, hydrothermal, and secondary. |
| IMA Status: |
Valid Species (Pre-IMA) 1827 |
| Locality: |
Common world wide. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek, pyro and louein, "fire" and "to wash," because it was used to remove the greenish color imparted to glass by iron compounds. |
| Name Pronunciation: |
Pyrolusite + Pronunciation  |
| Synonym: |
ICSD 73716 |
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PDF 24-735 |
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Polianite |
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Wad |
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