Formula: Al2Si3AlO10(OH)2 . Al2.33(OH)6
Origin of name: From locality, Donets Basin, Ukraine
Crystal system: Monoclinic
Crystal class: 2
Twinning:
Unit cell:
Colour: White
Diaphaneity:
Luster: Pearly
Habit: Flaky aggregates
Hardness: 2.5
Specific gravity: 2.63
Cleavage: 1
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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