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Keiviite-(Y) Mineral Data
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General Keiviite-(Y) Information
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 Chemical Formula: |
(Y,Yb)2Si2O7 |
| Composition: |
Molecular Weight = 388.05 gm |
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Yttrium 34.37 % Y 43.64 % Y2O3 |
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Ytterbium 22.30 % Yb 25.39 % Yb2O3 |
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Silicon 14.48 % Si 30.97 % SiO2 |
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Oxygen 28.86 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Y1.5Yb0.5Si2O7 |
| Environment: |
In fissures in quartz and fluorite in \amazonite" pegmatites. |
| IMA Status: |
Approved IMA 1985 |
| Locality: |
Mt. Ploskaya, Keivy massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the relation to keiviite-(Yb) and the yttrium content. |
| Name Pronunciation: |
Keiviite-(Y)  |
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