IMA mineral species

Nickeltalmessite

Ca₂Ni(AsO₄)₂·2H₂O

Arsenate mineral.

Nickeltalmessite specimen
Nickeltalmessite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₂Ni(AsO₄)₂·2H₂O
ElementsCa, Ni, As, O, H
Crystal systemTriclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolNtlm
Nickel–Strunz class8.CG.35

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

🌍 Where it's found

Type locality (where it was first described): Bou Azer district