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Gyrolite Mineral Data
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General Gyrolite Information
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 Chemical Formula: |
NaCa16Si23AlO60(OH)8•64(H2O) |
| Composition: |
Molecular Weight = 3,586.19 gm |
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Sodium 0.64 % Na 0.86 % Na2O |
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Calcium 17.88 % Ca 25.02 % CaO |
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Aluminum 0.75 % Al 1.42 % Al2O3 |
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Silicon 18.01 % Si 38.54 % SiO2 |
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Hydrogen 3.82 % H 34.16 % H2O |
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Oxygen 58.89 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaCa16Si23AlO60(OH)8•64(H2O) |
| Environment: |
Secondary mineral from the alteration of basalts. Pegmatite dike intruding limestone. |
| IMA Status: |
Valid Species (Pre-IMA) 1851 |
| Locality: |
Isle of Skye, Scotland, UK. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek guros = "circle", in allusion to the round form of the crystalline groupings. |
| Name Pronunciation: |
Gyrolite  |
| Synonym: |
Centrallasite |
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ICSD 68199 |
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PDF 42-1452 |
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