VS
Name
—
Fe²⁺₃(PO₄)₂·4H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
3.5
Mohs hardness
—
3.12–3.19
Specific gravity
—
Pale greenish white
Streak
—
Vitreous, pearly on {001} cleavage
Luster
—
{001}, perfect; {100}, indistinct
Cleavage
—
P2_1/a
Space group
—
—
Structural group
—
Lud · Grandfathered
IMA
—
1885
Named in
—
Apple-green to bright green; nearly colorless in transmitted light
Typical colors
—
Fe · P · O · H
Elements
—