VS
Name
—
Na₃Sr₄(Fe²⁺Fe³⁺)Si₈O₂₄
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Monoclinic
Crystal system
—
5
Mohs hardness
—
3.22
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
Distinct on {100}
Cleavage
—
P2_1/c
Space group
—
—
Structural group
—
Vdy · Approved
IMA
—
2011
Named in
—
Pinkish to grayish brown, colorless in thin section
Typical colors
—
Na · Sr · Fe · Si · O
Elements
—