VS
Name
—
KNa₂₂(SO₄)₉(CO₃)₂Cl
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
3–3.5
Mohs hardness
—
2.562
Specific gravity
—
White
Streak
—
Vitreous to dull
Luster
—
On {0001}, good
Cleavage
—
P6_3/m
Space group
—
—
Structural group
—
Hks · Grandfathered
IMA
—
1885
Named in
—
Colorless to pale yellow, may be grayish green due to clay inclusions; colorless in transmitted light
Typical colors
—
K · Na · S · O · C · Cl
Elements
—