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Swinefordite Mineral Data
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General Swinefordite Information
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 Chemical Formula: |
(Li,Ca0.5,Na)0.72(Li,Al,Mg)2.66(Si,Al)4O10(OH,F)2•2(H2O) |
| Composition: |
Molecular Weight = 397.20 gm |
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Sodium 0.58 % Na 0.78 % Na2O |
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Lithium 1.75 % Li 3.76 % Li2O |
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Calcium 5.05 % Ca 7.06 % CaO |
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Magnesium 3.06 % Mg 5.07 % MgO |
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Aluminum 10.19 % Al 19.25 % Al2O3 |
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Silicon 21.21 % Si 45.38 % SiO2 |
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Hydrogen 1.40 % H 12.47 % H2O |
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Oxygen 54.38 % O |
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Fluorine 2.39 % F 2.39 % F |
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- %
F -1.01 % -O=F2 |
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______ ______ |
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100.00 % 95.17 % = TOTAL OXIDE |
| Empirical Formula: |
LiCa0.5Na0.1Al1.5Mg0.5Si3O10(OH)1.5F0.5•2(H2O) |
| IMA Status: |
Approved IMA 1975 |
| Locality: |
Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Ada Swineford (1917-1993), clay mineralogist and professor of geology at Western Washington State College, Bellingham, Washinton, USA. |
| Name Pronunciation: |
Swinefordite + Pronunciation  |
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