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Keiviite-(Yb) Mineral Data
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General Keiviite-(Yb) Information
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 Chemical Formula: |
(Yb,Y)2Si2O7 |
| Composition: |
Molecular Weight = 472.18 gm |
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Yttrium 9.41 % Y 11.96 % Y2O3 |
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Ytterbium 54.97 % Yb 62.59 % Yb2O3 |
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Silicon 11.90 % Si 25.45 % SiO2 |
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Oxygen 23.72 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Yb1.5Y0.5Si2O7 |
| Environment: |
Found in an "amazonite" pegmatite with fluorite. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Keivy, Kola Peninsula, Russia Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality and the ytterbium content. |
| Name Pronunciation: |
Keiviite-(Yb)  |
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