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Wallkilldellite Mineral Data
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General Wallkilldellite Information
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 Chemical Formula: |
Ca4Mn++6As+++++4O16(OH)8•18(H2O) |
| Composition: |
Molecular Weight = 1,505.95 gm |
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Calcium 10.65 % Ca 14.89 % CaO |
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Manganese 21.89 % Mn 28.26 % MnO |
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Arsenic 19.90 % As 30.52 % As2O5 |
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Hydrogen 2.94 % H 26.32 % H2O |
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Oxygen 44.62 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca4Mn2+6As4O16(OH)8•18(H2O) |
| Environment: |
Massive granular franklinite-willemite ore from a metamorphosed stratiform zinc orebody. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Sterling Hill, Ogdensburg, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the dell of the Wallkill River, in which both the Sterling Hill and the Franklin deposits were discovered. |
| Name Pronunciation: |
Wallkilldellite + Pronunciation  |
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