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Gregoryite Mineral Data
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General Gregoryite Information
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 Chemical Formula: |
(Na2,K2,Ca)CO3 |
| Composition: |
Molecular Weight = 115.06 gm |
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Potassium 20.39 % K 24.56 % K2O |
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Sodium 23.98 % Na 32.32 % Na2O |
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Calcium 3.48 % Ca 4.87 % CaO |
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Carbon 10.44 % C 38.25 % CO2 |
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Oxygen 41.71 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
0.6(Na2)0.3(K2)Ca0.1(CO3) |
| Environment: |
Phenocrysts in lengaite carbonatite lava. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
Oldoinyo Lengai volcano, Tanzania. Link to MinDat.org Location Data. |
| Name Origin: |
Named for John Walter Gregory (1864-1932), University of Melbourne, Melbourne, Australia and University of Glasgow, Glasgow, Scotland. |
| Name Pronunciation: |
Gregoryite + Pronunciation  |
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