VS
Name
—
NaCa₁₆(Si₂₃Al)O₆₀(OH)₈·14H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
3–4
Mohs hardness
—
2.39
Specific gravity
—
—
Streak
—
Vitreous to pearly
Luster
—
Perfect basal; poor prismatic
Cleavage
—
P-1
Space group
—
Gyrolite
Structural group
—
Gyr · Grandfathered
IMA
—
1851
Named in
—
Colorless to white, may be grayish, tan, yellowish, brownish, or pale green from inclusions
Typical colors
—
Na · Ca · Si · Al · O · H
Elements
—