Formula: CaB3O4(OH)3.H2O borate
Specific gravity: 2.4
Colour: Colourless, white
Solubility: Slightly soluble in water
Colemanite occurs in borax lake bed deposits and sediments, in
arid alkali environments.
Ulexite and borax are usually
associated, and colemanite is believed to have originated by their alteration.
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