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Tornebohmite-(La) Mineral Data
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General Tornebohmite-(La) Information
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 Chemical Formula: |
(La,Ce)2Al(SiO4)2(OH) |
| Composition: |
Molecular Weight = 506.57 gm |
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Lanthanum 41.13 % La 48.24 % La2O3 |
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Cerium 13.83 % Ce 16.20 % Ce2O3 |
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Aluminum 5.33 % Al 10.06 % Al2O3 |
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Silicon 11.09 % Si 23.72 % SiO2 |
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Hydrogen 0.20 % H 1.78 % H2O |
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Oxygen 28.43 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
La1.5Ce0.5Al(SiO4)2(OH) |
| Environment: |
Rare-earth ore deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1921 |
| Locality: |
Bastnas mine, Riddarhyttan, Vastmanland, Sweden. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Alfred Ellis Tornebohm (1839-1911), former director of the Geological Survey of Sweden. |
| Name Pronunciation: |
Tornebohmite-(La) + Pronunciation  |
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