VS
Name
—
Ba₄Mn²⁺₂Si₄O₁₂(OH,H₂O)₃Cl₃
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
2.5–3
Mohs hardness
—
3.52
Specific gravity
—
Pale orange
Streak
—
Vitreous
Luster
—
Good on {1120}; on {0001}, poor or a fracture
Cleavage
—
P6/mmm
Space group
—
—
Structural group
—
Vpk · Approved
IMA
—
1964
Named in
—
Brownish orange to light brownish yellow
Typical colors
—
Ba · Mn · Si · O · H · Cl
Elements
—