IMA mineral species

Lammerite

Cu₃(AsO₄)₂

Arsenate mineral.

Lammerite specimen — Lammerite-Lemanskiite-118201.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	Cu₃(AsO₄)₂
Elements	Cu, As, O
Crystal system	Monoclinic
Mohs hardness	—
Density	5.246 g/cm³
Streak	—
Color	—
IMA symbol	Lmr
Nickel–Strunz class	8.AB.30

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

🌍 Where it's found

Type locality (where it was first described): Laurani Mine, Bolivia

Type locality
Notable source / deposit
Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.

Learn more

Lammerite on Mindat.org
Wikidata item Q3826496 (source of this page's data – you can correct it there)