VS
Name
—
CaZn(SiO₄)·H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
5.5
Mohs hardness
—
3.28–3.33
Specific gravity
—
—
Streak
—
Brilliant, glassy; pearly on {010}
Luster
—
Perfect on {010}
Cleavage
—
Cc
Space group
—
—
Structural group
—
Cnh · Grandfathered
IMA
—
1898
Named in
—
Amethystine, colorless to white
Typical colors
—
Ca · Zn · Si · O · H
Elements
—