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Hulsite Mineral Data
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General Hulsite Information
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 Chemical Formula: |
(Fe++,Mg)2(Fe+++,Sn)O2(BO3) |
| Composition: |
Molecular Weight = 233.09 gm |
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Magnesium 10.43 % Mg 17.29 % MgO |
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Iron 45.52 % Fe 30.82 % FeO / 30.83 % Fe2O3 |
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Tin 5.09 % Sn 6.47 % SnO2 |
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Boron 4.64 % B 14.93 % B2O3 |
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Oxygen 34.32 % O |
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______ ______ |
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100.00 % 100.34 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+MgFe3+0.9Sn0.1O2(BO3) |
| Environment: |
Metamorphosed limestone at a granite contact. |
| IMA Status: |
Valid Species (Pre-IMA) 1908 |
| Locality: |
Brooks mountain, Seward peninsula, Alaska. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Alfred Hulse Brooks (1871-1924), U. S. Geologist. |
| Name Pronunciation: |
Hulsite  |
| Synonym: |
ICSD 12133 |
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PDF 17-511 |
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