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Julgoldite-(Fe+++) Mineral Data
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General Julgoldite-(Fe+++) Information
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 Chemical Formula: |
Ca2Fe+++(Fe+++,Al)2(SiO4)(Si2O7)(O,OH)2•(H2O) |
| Composition: |
Molecular Weight = 2,199.83 gm |
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Calcium 14.57 % Ca 20.39 % CaO |
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Magnesium 0.22 % Mg 0.37 % MgO |
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Aluminum 1.35 % Al 2.55 % Al2O3 |
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Iron 27.16 % Fe 38.84 % Fe2O3 |
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Silicon 15.32 % Si 32.78 % SiO2 |
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Hydrogen 0.64 % H 5.73 % H2O |
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Oxygen 40.73 % O |
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______ ______ |
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100.00 % 100.65 % = TOTAL OXIDE |
| Empirical Formula: |
Ca8Fe3+2.7Al1.1Mg0.2Fe3+8Si12O42(OH)14 |
| Environment: |
Fracture filling in hematite-magnetite ore from the Amerika stope at Langban. |
| IMA Status: |
Approved IMA 1971 |
| Locality: |
Langban, Varmland, Sweden. Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1971 by Moore for Julian Royce Goldsmith (1918-), American geochemist, University of Chicago. |
| Name Pronunciation: |
Julgoldite-(Fe+++) + Pronunciation  |
| Synonym: |
Oxyjulgoldite |
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