VS
Name
—
Mg₆(Mg,Ti,Zr, )₂(Al,Mg)₆Si₈O₂₈(OH)₁₀
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
6.5
Mohs hardness
—
3.15–3.22
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
—
Cleavage
—
P6_3
Space group
—
Ellenbergerite
Structural group
—
Ell · Approved
IMA
—
1984
Named in
—
Purple to lilac; some individuals exhibit smoky or pink cores
Typical colors
—
Mg · Ti · Zr · Al · Si · O · H
Elements
—