VS
Name
—
Mg₂Mn³⁺O₂(BO₃)
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Orthorhombic
Crystal system
—
6
Mohs hardness
—
3.84
Specific gravity
—
Pale brown to yellow
Streak
—
Vitreous to dull
Luster
—
One, poor, and a second, very poor
Cleavage
—
Pbam
Space group
—
Ludwigite
Structural group
—
Fdk · Approved
IMA
—
1983
Named in
—
Medium reddish brown
Typical colors
—
Mg · Mn · O · B
Elements
—