VS
Name
—
KMg₄Fe³⁺[Si₁₂O₃₀]
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
2.68
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P6/mcc
Space group
—
Milarite
Structural group
—
Cys · Approved
IMA
—
1987
Named in
—
Deep blue; in transmitted light, light blue to colorless
Typical colors
—
K · Mg · Fe · Si · O
Elements
—