VS
Name
—
Ca₇(Si₃O₉)₂(CO₃)·2H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
4.5–5
Mohs hardness
—
2.71
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
{010}, fair; {100}, poor
Cleavage
—
Cm
Space group
—
—
Structural group
—
Scw · Grandfathered
IMA
—
1930
Named in
—
Colorless
Typical colors
—
Ca · Si · O · C · H
Elements
—