VS
Name
—
K₂Mg(SO₄)₂·6H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.028
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {201}, perfect (synthetic)
Cleavage
—
P2_1/a
Space group
—
Picromerite
Structural group
—
Pmr · Approved
IMA
—
1955
Named in
—
Colorless or white; pale red, pale yellow, gray due to impurities; colorless in transmitted light
Typical colors
—
K · Mg · S · O · H
Elements
—