VS
Name
—
Mn₇Si₆O₁₅(OH)₈
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
4.5–6
Mohs hardness
—
2.98–3.02
Specific gravity
—
—
Streak
—
Waxy, pearly on perfect cleavage
Luster
—
Perfect on {100}, {010}, {001}
Cleavage
—
P2_1/c
Space group
—
Clay
Structural group
—
Bem · Approved
IMA
—
1888
Named in
—
Pale yellow to yellowish brown
Typical colors
—
Mn · Si · O · H
Elements
—