Haiweeite
Haiweeite is a mineral of uranium and has the chemical formula: Ca[(UO2)2Si5O12(OH)2]·3(H2O). It is a secondary mineral of uranium, a product of oxidation. It has a greenish yellow color. It has a Mohs hardness of about 3.5 and is fluorescent under UV light.
| Haiweeite | |
|---|---|
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| General | |
| Category | Nesosilicate |
| Formula (repeating unit) | Ca[(UO2)2Si5O12(OH)2]·3(H2O) |
| Strunz classification | 9.AK.25 |
| Dana classification | 53.3.2.2 |
| Crystal system | Orthorhombic |
| Crystal class | Dipyramidal (mmm) |
| Space group | Orthorhombic H-M symbol: (2/m 2/m 2/m) Space group: Pbcn |
| Identification | |
| Other characteristics |  |
It was named after the Haiwee Reservoir, Inyo County, California, US, where it was first found.
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