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Garrelsite-VIII Mineral Data
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General Garrelsite-VIII Information
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 Chemical Formula: |
Ba3NaSi2B7O16(OH)4 |
| Composition: |
Molecular Weight = 890.83 gm |
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Barium 46.25 % Ba 51.63 % BaO |
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Sodium 2.58 % Na 3.48 % Na2O |
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Silicon 6.31 % Si 13.49 % SiO2 |
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Boron 8.49 % B 27.35 % B2O3 |
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Hydrogen 0.45 % H 4.04 % H2O |
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Oxygen 35.92 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ba3NaSi2B7O16(OH)4 |
| Environment: |
Of authigenic origin, in dolomitic shale in drill core from the Green River Formation. |
| IMA Status: |
Valid Species (Pre-IMA) 1955 |
| Locality: |
From several drill holes in Uintah Co., Utah, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Robert Minard Garrels (1916-1988), American geochemist and educator. |
| Name Pronunciation: |
Garrelsite-VIII + Pronunciation  |
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