VS
Name
—
Na₂Ca₄(Ca₀.₅Zr₀.₅)Zr(Si₂O₇)₂OF₃
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Triclinic
Crystal system
—
5.5
Mohs hardness
—
3.25–3.31
Specific gravity
—
—
Streak
—
Vitreous on crystal faces, greasy on fractures
Luster
—
Distinct on {110} and {110}, the two intersecting at nearly 90±
Cleavage
—
P-1
Space group
—
Wöhlerite
Structural group
—
Hio · Approved
IMA
—
1890
Named in
—
Light yellow to honey-yellow, yellowish brown, green
Typical colors
—
Na · Ca · Zr · Si · O · F
Elements
—