Formula: Ca2Al(OH)6(Cl,OH) .3H2O
Origin of name: From composition
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Colourless to light green
Diaphaneity: Transparent
Luster: Vitreous, pearly on cleavages
Habit: Massive
Hardness: 3
Specific gravity: 2.15
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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