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Earlshannonite Mineral Data
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General Earlshannonite Information
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 Chemical Formula: |
(Mn,Fe++)Fe+++2(PO4)2(OH)2•4(H2O) |
| Composition: |
Molecular Weight = 472.79 gm |
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Calcium 0.85 % Ca 1.19 % CaO |
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Magnesium 0.51 % Mg 0.85 % MgO |
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Manganese 5.81 % Mn 7.50 % MnO |
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Iron 27.17 % Fe 4.56 % FeO / 33.78 % Fe2O3 |
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Phosphorus 13.10 % P 30.02 % P2O5 |
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Hydrogen 2.47 % H 22.10 % H2O |
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Oxygen 50.08 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+0.5Fe2+0.3Mg0.1Ca0.1Fe3+2(PO4)2(OH)2�4.8(H2O) |
| Environment: |
Very late-stage secondary mineral in a lithium-rich granite pegmatite. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Earl V. Shannon (1895-1981), American mineralogist and chemist, U. S. National Museum, Washington, D.C., USA. |
| Name Pronunciation: |
Earlshannonite + Pronunciation  |
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