Formula: NaAl2(Si3Al)O10(OH)2
Origin of name: from Greek for to mislead
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: colourless, pale yellow
Diaphaneity: transparent to translucent
Luster: pearly
Habit: fine scales, massive, compact
Hardness: 2.5
Specific gravity: 2.78 to 2.90
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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