VS
Name
—
Mn²⁺₁₀Sb⁵⁺₂As⁵⁺₂Si₂O₂₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
5.5
Mohs hardness
—
4.62
Specific gravity
—
Pale brownish orange
Streak
—
Subadamantine, oily
Luster
—
Fair to poor on {010}
Cleavage
—
A2/a
Space group
—
—
Structural group
—
Pwe · Approved
IMA
—
1966
Named in
—
Yellowish brown, orange, tan, with a slight olive tinge
Typical colors
—
Mn · Sb · As · Si · O
Elements
—