VS
Name
—
Pb₂Mn³⁺₂O₂(Si₂O₇)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
6
Mohs hardness
—
6.19
Specific gravity
—
Yellowish brown
Streak
—
Vitreous to submetallic, greasy, dull
Luster
—
Distinct on {110}
Cleavage
—
Pbcn
Space group
—
—
Structural group
—
Ken · Grandfathered
IMA
—
1881
Named in
—
Brown, Black
Typical colors
—
Pb · Mn · O · Si
Elements
—