Gibbsite is a mineral, aluminum hydroxide. As a rule, it occurs in the form of radiant-leafy aggregates. Much less often - in the form of spherulites and reniform aggregates.
You can see gibbsite stone for sale and buy it in the Minerals of Russia online store.
General | |
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Category | Hydroxide minerals |
Formula (repeating unit) |
Al(OH)3 |
IMA symbol | Gbb[1] |
Strunz classification | 4.FE.10 |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) (same H-M symbol) |
Space group | P21/m |
Identification | |
Mohs scale hardness | 2.5-3 |
Specific gravity | 2.35 |