VS
Name
—
CaAl₂Si₄O₁₂·4H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
3.5–4
Mohs hardness
—
2.23–2.41
Specific gravity
—
White
Streak
—
Vitreous to pearly on cleavages
Luster
—
{010}, {110}, perfect
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Lmt · Approved
IMA
—
1805
Named in
—
White, Pink, Yellow, Brown
Typical colors
—
Ca · Al · Si · O · H
Elements
—