Formula: MgB3O3(OH)5 . 5H2O
Origin of name: Locality; Inder Lake, Kazakhstan
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 10.03 Ǻ, b = 13.12 Ǻ, c = 6.82 Ǻ, β = 104.5°
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit:
Hardness: 2.5
Specific gravity: 1.79
Cleavage: 2; {110} good, {001} indistinct
Tenacity:
Streak:
Synonyms/varieties:
Comments: Dimorphous with kurnakovite
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