VS
Name
—
K₇Na₃Ca₅Al₂Si₁₄O₃₈F₄Cl₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
—
Mohs hardness
—
2.6
Specific gravity
—
—
Streak
—
—
Luster
—
Distinct on {010}
Cleavage
—
Pmmn
Space group
—
Rhodesite
Structural group
—
Dhy · Approved
IMA
—
1959
Named in
—
Colorless; in thin section, abnormally bluish gray in sections cut normal to [010]
Typical colors
—
K · Na · Ca · Al · Si · O · F · Cl
Elements
—