| Chemical formula | Al4(OH)8(Si4O10).4H2O |
| Hardness | 1-2 |
| Density | 2.60 |
| Color | White |
| Luster | Porceline or matte. |
| Description | In aggregates or porous pieces. |
| Associates | Kaolinite, gibbsite (not found in Sweden). |
| Notes | Formed by weathering of basalt or other baseous rocks. Also in metamorphed zinc, copper and nickel deposits. |
| Locations | A rare mineral in Sweden. Found in the following locations :
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| To silicate index. |
Mineral group index. |
Main index. |
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