IMA mineral species

Graftonite

Fe²⁺Fe²⁺₂(PO₄)₂

Phosphate mineral.

Graftonite specimen
Graftonite with Triphylite Iron manganese calcium phosphate Palermo Mine, North Groton, New Hampshire 2863.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaFe²⁺Fe²⁺₂(PO₄)₂
ElementsFe, P, O
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolGft
Nickel–Strunz class8.AB.20

“—” means no reliable value in Wikidata yet. Check Mindat for full data.