Formula: NiCl2.6H2O
Origin of name: from nickel and bischofite
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: emerald-green
Diaphaneity:
Luster: vitreous
Habit: crystals poorly formed, to 15 mm, in aggregates, powdery coatings
Hardness: 1.5
Specific gravity: 1.93
Cleavage: 1; {001} perfect
Tenacity:
Streak: pale green to white
Synonyms/varieties:
Comments: Ni analogue of bischofite
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