VS
Name
—
Fe³⁺₂(SO₄)₃·11H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Triclinic
Crystal system
—
2.5
Mohs hardness
—
2.11–2.15
Specific gravity
—
—
Streak
—
—
Luster
—
Perfect on {010}; good on {100}
Cleavage
—
P-1
Space group
—
—
Structural group
—
Qst · Grandfathered
IMA
—
1888
Named in
—
Pale violet, reddish violet; colorless to pale rose in transmitted light
Typical colors
—
Fe · S · O · H
Elements
—