VS
Name
—
(H₃O)₃Mg₆Fe₁₅(SO₄)₂₁(OH)₁₈·98H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
1.91–1.99
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {0001}, a parting
Cleavage
—
R-3
Space group
—
—
Structural group
—
Sví · Approved
IMA
—
1926
Named in
—
Yellow, pale yellow-green
Typical colors
—
H · O · Mg · Fe · S
Elements
—