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Rinkite Mineral Data
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General Rinkite Information
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 Chemical Formula: |
Na(Na,Ca)2(Ca,Ce)4(Ti,Nb)(Si2O7)2(O,F)2 |
| Composition: |
Molecular Weight = 820.37 gm |
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Sodium 7.01 % Na 9.44 % Na2O |
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Calcium 19.54 % Ca 27.34 % CaO |
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Cerium 17.08 % Ce 20.00 % Ce2O3 |
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Titanium 4.38 % Ti 7.30 % TiO2 |
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Niobium 2.83 % Nb 4.05 % Nb2O5 |
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Silicon 13.69 % Si 29.30 % SiO2 |
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Oxygen 33.15 % O |
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Fluorine 2.32 % F 2.32 % F |
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- %
F -0.98 % -O=F2 |
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______ ______ |
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100.00 % 98.78 % = TOTAL OXIDE |
| Empirical Formula: |
Na2.5Ca4CeTi0.75Nb0.25(Si2O7)2O3F |
| Environment: |
Mineral in sodalite-syenite rocks. |
| IMA Status: |
Approved IMA 1995 (Dana # Added) |
| Locality: |
Julianehaab district, Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named after H. RINK, director of a Danesh-Greenlandic trade group. |
| Name Pronunciation: |
Rinkite  |
| Synonym: |
Rinkolite |
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