VS
Name
—
Ca₁₃Si₁₀O₂₈(OH)₂F₈·6H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
3
Mohs hardness
—
2.75–2.76
Specific gravity
—
—
Streak
—
Pearly
Luster
—
{0001}, perfect
Cleavage
—
R-3
Space group
—
—
Structural group
—
Zp · Grandfathered
IMA
—
1902
Named in
—
White; in transmitted light, colorless
Typical colors
—
Ca · Si · O · H · F
Elements
—