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Sheldrickite Mineral Data
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General Sheldrickite Information
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 Chemical Formula: |
NaCa3(CO3)2F3•(H2O) |
| Composition: |
Molecular Weight = 338.25 gm |
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Sodium 6.80 % Na 9.16 % Na2O |
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Calcium 35.55 % Ca 49.74 % CaO |
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Hydrogen 0.60 % H 5.33 % H2O |
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Carbon 7.10 % C 26.02 % CO2 |
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Oxygen 33.11 % O |
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Fluorine 16.85 % F 16.85 % F |
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- %
F -7.10 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaCa3(CO3)2F3•(H2O) |
| Environment: |
Found in a marble xenolith in the nepheline syenite intrusive unit close to a large unit of hornfels. A late stage hydrothermal infilling |
| IMA Status: |
Approved IMA 1996 (Dana # Added) |
| Locality: |
Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Quebec, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for George M. Sheldrick, creator of the SHELX software, widely used for the refinement of crystal structures. |
| Name Pronunciation: |
Sheldrickite + Pronunciation  |
| Synonym: |
ICSD 76858 |
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IMA1996-019 |
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