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Trimounsite-(Y) Mineral Data
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General Trimounsite-(Y) Information
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 Chemical Formula: |
(Y,REE)2Ti2SiO9 |
| Composition: |
Molecular Weight = 475.18 gm |
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La,Ce,Pr,Nd,Sm, 15.15 % RE 17.68 % REE2O3 |
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Yttrium 28.06 % Y 35.64 % Y2O3 |
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Titanium 21.16 % Ti 35.30 % TiO2 |
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Silicon 5.32 % Si 11.38 % SiO2 |
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Oxygen 30.30 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Y1.5REE0.5Ti2.1Si0.9O9 |
| Environment: |
In the dolomite portions of a talc deposit. |
| IMA Status: |
Approved IMA 1990 |
| Locality: |
Trimouns talc deposit, 6 km northeast of Luzenac, Ariege, France. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality and the yttrium content. |
| Name Pronunciation: |
Trimounsite-(Y) + Pronunciation  |
| Synonym: |
IMA1989-042 |
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