IMA mineral species

Cobaltarthurite

(Co,Mg)Fe³⁺₂(AsO₄)₂(OH)₂ * 4H₂O

Arsenate mineral.

Cobaltarthurite specimen
Cobaltarthurite - La Reconquistada Claim.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula(Co,Mg)Fe³⁺₂(AsO₄)₂(OH)₂ * 4H₂O
ElementsCo, Mg, Fe, As, O, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolCaru
Nickel–Strunz class8.DC.15

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

🌍 Where it's found

Type locality (where it was first described): La Reconquistada claim, Spain