Kaolinite

Physical Properties

Color white
Form/Habit massive
Lusture dull
Streak white
Hardness 2-2.5
Cleavage perfect 1 set rarely seen
Fracture earthy
Specific Gravity 2.6 (low)
Chemical Composition Al2Si4O10(OH)2
Crystal System triclinic
Diagnostic Properties clay like texture, rarely seen perfect 1 set of cleavage, earthy fracture

Remarks

Gallery