VS
Name
—
Ca₆(CO₃)₁.₅₈(Si₂O₇)₀.₂₁(OH)₇[Cl₀.₅₀(OH)₀.₀₈(H₂O)₀.₄₂]
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
—
Mohs hardness
—
2.34–2.5
Specific gravity
—
Pink
Streak
—
Vitreous
Luster
—
Perfect on {010}; distinct on {100}
Cleavage
—
Pnam
Space group
—
—
Structural group
—
Def · Approved
IMA
—
1978
Named in
—
Colorless to deep red or rose-brown
Typical colors
—
Ca · C · O · Si · H · Cl
Elements
—