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Tornebohmite-(Ce) Mineral Data
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General Tornebohmite-(Ce) Information
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 Chemical Formula: |
(Ce,La,Nd)2Al(SiO4)2(OH) |
| Composition: |
Molecular Weight = 509.02 gm |
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Lanthanum 13.64 % La 16.00 % La2O3 |
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Cerium 33.03 % Ce 38.69 % Ce2O3 |
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Aluminum 5.30 % Al 10.02 % Al2O3 |
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Silicon 11.04 % Si 23.61 % SiO2 |
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Hydrogen 0.20 % H 1.77 % H2O |
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Neodymium 8.50 % Nd 9.92 % Nd2O3 |
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Oxygen 28.29 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ce1.2La0.5Nd0.3Al(SiO4)2(OH) |
| Environment: |
Rare-earth ore deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1921 |
| Locality: |
Bastnaes mine near 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-(Ce) + Pronunciation  |
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