Formula: CaCl2.2H2O
Origin of name: after locality Sinjar, Iraq
Crystal system: tetragonal
Crystal class: unknown
Twinning:
Unit cell:
Colour: pale pink
Diaphaneity:
Luster: vitreous to resinous
Habit: crystals prismatic, elongated, massive, granular
Hardness: 1.5
Specific gravity:
Cleavage: 1; prismatic
Tenacity:
Streak: white
Synonyms/varieties:
Comments:
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