VS
Name
—
Mg₅Si₆O₁₆(OH)₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
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Orthorhombic
Crystal system
—
2.25
Mohs hardness
—
3.02
Specific gravity
—
—
Streak
—
—
Luster
—
Perfect on {210}, intersecting at 38± and 142±; breakage on {100} and {010} may be partings
Cleavage
—
Pbca
Space group
—
—
Structural group
—
Jim · Approved
IMA
—
1977
Named in
—
Colorless to very light pinkish brown; colorless in thin section
Typical colors
—
Mg · Si · O · H
Elements
—