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VS
K
Name
—
Ca₂Mn²⁺Mn³⁺₂(SiO₄)₂(OH)₄·9H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
—
Crystal system
—
4
Mohs hardness
—
2.61
Specific gravity
—
Light yellow
Streak
—
Vitreous
Luster
—
{0001}, perfect
Cleavage
—
—
Space group
—
—
Structural group
—
Kit · Approved
IMA
—
1982
Named in
—
Bright to golden yellow; in thin section, medium yellow
Typical colors
—
Ca · Mn · Si · O · H
Elements
—