VS
Name
—
K₃Na₃Ca₅Si₁₂O₃₀(OH)₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
2.707
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
One, very perfect; another, perfect, at 118± to the first
Cleavage
—
Cm
Space group
—
—
Structural group
—
Cns · Approved
IMA
—
1959
Named in
—
Greenish yellow to grayish green
Typical colors
—
K · Na · Ca · Si · O · H
Elements
—