VS
Name
—
Na₂Ti₂Na₂Ti₂(Si₂O₇)₂O₄(H₂O)₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
2–3
Mohs hardness
—
2.76–2.84
Specific gravity
—
—
Streak
—
Vitreous on cleavages, greasy on fractures
Luster
—
{001}, perfect
Cleavage
—
P1
Space group
—
Seidozerite-Murmanite
Structural group
—
Mmn · Approved
IMA
—
1930
Named in
—
Lilac to bright pink when fresh; yellow, brown, cinnamon-brown to black when altered; in thin section
Typical colors
—
Na · Ti · Si · O · H
Elements
—