VS
Name
—
(K,Na)₂.₅(Ca,Na)₇Si₁₆O₃₈(OH,F)₂·3.5H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
—
Mohs hardness
—
2.43–2.58
Specific gravity
—
—
Streak
—
Vitreous, satiny, pearly
Luster
—
Perfect micaceous on {001}
Cleavage
—
P-1
Space group
—
Gyrolite
Structural group
—
Fdr · Approved
IMA
—
1965
Named in
—
Colorless, whitish to pale raspberry-red
Typical colors
—
K · Na · Ca · Si · O · H · F
Elements
—