Kaliborite

kaliborite

boracite

kinoite

pinnoite

Images

Formula: KHMg₂B₁₂O₁₆(OH)₁₀.4H₂O
Hydrated hexaborate
Crystal System: Monoclinic
Specific gravity: 2.05 to 2.109 measured
Hardness: 4 to 4½
Streak: White
Colour: Colourless, white, reddish brown; colourless in transmitted light
Solubility: Partially soluble in water, readily soluble in acids
Environments

Potash deposits
Salt domes

Kaliborite is an uncommon component in marine potash deposits, and rarely in efflorescences (HOM).

Localities

At the type locality, the Aschersleben I potash mine, Aschersleben, Salzlandkreis, Saxony-Anhalt, Germany, kaliborite is associated with boracite, pinnoite and kainite (HOM).

At the Inder B deposit and salt dome, Inder District, Atyrau Region, Kazakhstan, kaliborite is associated with anhydrite and halite (HOM).
Kaliborite from the Inder B deposit and salt dome - Image

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