VS
Name
—
(Pb,Ca)₃Al₂(Si,Al)₄O₁₀(CO₃)₂(OH)₃·0.3H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
2–3
Mohs hardness
—
4
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
Perfect on {001}
Cleavage
—
P2_1
Space group
—
—
Structural group
—
Sur · Approved
IMA
—
1977
Named in
—
White to pale green; colorless in thin section
Typical colors
—
Pb · Ca · Al · Si · O · C · H
Elements
—