Formula: AlF(OH)2
Origin of name: after locality; Zharchinskoye deposit, Russia
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 5.164, b = 7.843, c = 5.179, β = 116.244°
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit: Drusy aggregates of fine-grained masses and prismatic crystals to 2.5 mm, twinned
Hardness: 4.5
Specific gravity: 2.81
Cleavage: 1; {010} perfect
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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