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Endellite Mineral Data
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General Endellite Information
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 Chemical Formula: |
Al2Si2O5(OH)4•2(H2O) |
| Composition: |
Molecular Weight = 294.19 gm |
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Aluminum 18.34 % Al 34.66 % Al2O3 |
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Silicon 19.09 % Si 40.85 % SiO2 |
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Hydrogen 2.74 % H 24.49 % H2O |
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Oxygen 59.82 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Al2Si2O5(OH)4•2(H2O) |
| Environment: |
Formed by weathering or hydrothermal alteration of aluminosilicate minerals. Dehydrates to halloysite above 400 deg C. |
| IMA Status: |
Discredited IMA 1967 (Dana # Added) |
| Locality: |
North Gardiner mine, Bedford, Lawrence County, Indiana, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1943 for Kurt Endell (1887{?), German geologist, one of the discoverers of the mineral. |
| Synonym: |
Hydrohalloysite |
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Kimolite |
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