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Ellestadite Mineral Data
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General Ellestadite Information
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Chemical Formula: |
Ca5(SiO4,PO4,SO4)3(F,OH,Cl) |
Composition: |
Molecular Weight = 500.48 gm |
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Calcium 40.04 % Ca 56.02 % CaO |
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Silicon 10.10 % Si 21.61 % SiO2 |
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Phosphorus 5.57 % P 12.76 % P2O5 |
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Hydrogen 0.06 % H 0.54 % H2O |
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Sulfur 1.92 % S 4.80 % SO3 |
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Chlorine 0.71 % Cl 0.71 % Cl |
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- %
Cl -0.16 % -O=Cl2 |
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Oxygen 39.32 % O |
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Fluorine 2.28 % F 2.28 % F |
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- %
F -0.96 % -O=F2 |
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______ ______ |
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100.00 % 97.60 % = TOTAL OXIDE |
Empirical Formula: |
Ca5(SiO4)1.8(PO4)0.9(SO4)0.3F0.6(OH)0.3Cl0.1 |
Environment: |
Metamorphosed limestone. Group name for hydroxylellestadite - chlorellestadite series. |
IMA Status: |
Not Approved IMA |
Locality: |
Crestmore quarry, 5 miles NW of Riverside, Riverside Co. California. Link to MinDat.org Location Data. |
Name Origin: |
Named for Reuben B. Ellestad (1900-1993), American analytical chemist of Minneapolis, Minnesota, USA. |
Synonym: |
ICSD 39775 |
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PDF 25-173 |
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Wilkeite |
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