Formula: (Mg,Al)2Si4O10(OH).4H2O
Origin of name: after locality Palygorsk Division mine, Perm province, Russia
Crystal system: monoclinic and orthorhombic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: white, gray
Diaphaneity: translucent
Luster: dull
Habit: crystals lath-like, elongated, in bundles, forms flexible sheets of interlaced fibers, resembles leather or parchment
Hardness: 1
Specific gravity: 2.217
Cleavage: 1; {110} easy
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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