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Ternesite Mineral Data
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General Ternesite Information
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 Chemical Formula: |
Ca5(SiO4)2SO4 |
| Composition: |
Molecular Weight = 480.62 gm |
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Calcium 41.69 % Ca 58.34 % CaO |
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Silicon 11.69 % Si 25.00 % SiO2 |
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Sulfur 6.67 % S 16.66 % SO3 |
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Oxygen 39.95 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca5(SiO4)2(SO4) |
| Environment: |
In calcium-rich xenoliths in leucite tephrite lava. |
| IMA Status: |
Approved IMA 1997 (Dana # Added) |
| Locality: |
The Ettringer Bellerberg, near Mayen, Eifel, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
For Mr. B. Ternes of Mayen, Germany, who found the mineral and provided specimens for the study. |
| Name Pronunciation: |
Ternesite + Pronunciation  |
| Synonym: |
ICSD 85123 |
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IMA1995-015 |
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PDF 49-1807 |
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