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Hornesite Mineral Data
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General Hornesite Information
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 Chemical Formula: |
Mg3(AsO4)2•8(H2O) |
| Composition: |
Molecular Weight = 494.88 gm |
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Magnesium 14.73 % Mg 24.43 % MgO |
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Arsenic 30.28 % As 46.44 % As2O5 |
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Hydrogen 3.26 % H 29.12 % H2O |
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Oxygen 51.73 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mg3(AsO4)2•8(H2O) |
| Environment: |
Lmestone blocks, thermally metamorphosed, in a volcanic tuff (Fiano, Italy). |
| IMA Status: |
Valid Species (Pre-IMA) 1860 |
| Locality: |
Banat, Hungary [probably Oravi�ta or Csiklova, Romania]. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Moritz Hornes (1815-1868), Curator of the Imperial Cabinet, Vienna, Austria. |
| Name Pronunciation: |
Hornesite + Pronunciation  |
| Synonym: |
Hoernesite |
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