VS
Name
—
Fe³⁺(AsO₄)·2H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Orthorhombic
Crystal system
—
3.5–4
Mohs hardness
—
3.27
Specific gravity
—
white
Streak
—
Vitreous to subadamantine, subresinous
Luster
—
{201}, imperfect; {001}, {100}, in traces
Cleavage
—
Pbca
Space group
—
—
Structural group
—
Scd · Grandfathered
IMA
—
1818
Named in
—
Green, Blue, Brown, Colorless
Typical colors
—
Fe · As · O · H
Elements
—