IMA mineral species

Rockbridgeite

Fe²⁺Fe³⁺₄(PO₄)₃(OH)₅

Phosphate minerale.

RedGreenBrownBlack

Rockbridgeite specimen
Phosphosiderite-Rockbridgeite-k330a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaFe²⁺Fe³⁺₄(PO₄)₃(OH)₅
ElementsFe, P, O, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolRkb
Nickel–Strunz class8.BC.10

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