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Buddingtonite Mineral Data
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General Buddingtonite Information
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 Chemical Formula: |
(NH4)AlSi3O8•0.5(H2O) |
| Composition: |
Molecular Weight = 266.28 gm |
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Aluminum 10.13 % Al 19.15 % Al2O3 |
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Silicon 31.64 % Si 67.69 % SiO2 |
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Hydrogen 1.51 % H - % Calc as (NH4)2O |
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Hydrogen 0.38 % H 3.38 % H2O |
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Nitrogen 5.26 % N 9.78 % (NH4)2O |
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Oxygen 51.07 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
(NH4)Al(Si3O8)•0.5(H2O) |
| Environment: |
Plagioclase altered by ammonium-bearing waters. |
| IMA Status: |
Approved IMA 1964 |
| Locality: |
Sulfur Bank mine, end of east arm of clear Lake, Lake Co. California. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Arthur Francis Buddington (1890-1980), American petrologist, Princeton University. |
| Name Pronunciation: |
Buddingtonite + Pronunciation  |
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