Mineral Name
Chemical Formula
Al2Si2O5(OH)4
Preview
Color
white
Class
Article
Luster
dull, earthy
Diaphaneity
opaque
Hardness
2-2.5
Cleavage
1 direction: {001} perfect
Fracture
clay-like fractures
Density
2.6
Crystal Shape
usually in clay-like masses, either compact or friable
Crystal System
Triclinic
COinS