VS
Name
—
Fe³⁺₃(PO₄)₂(OH)₃·5H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Amorphous
Crystal system
—
—
Mohs hardness
—
2.42
Specific gravity
—
Amber
Streak
—
Vitreous to greasy
Luster
—
None, good parting along the {010} cleavage of the vivianite precursor
Cleavage
—
—
Space group
—
—
Structural group
—
Sbb · Approved
IMA
—
2000
Named in
—
Brown; amber in transmitted light
Typical colors
—
Fe · P · O · H
Elements
—