IMA mineral species

Mottanaite-(Ce)

Ca₄(Ce,REE)∑₂Al(Be₁.₅☐₀.₅)∑₂[B₄Si₄O₂₂]O₂

Single chain inosilicate mineral.

Mottanaite-(Ce) specimen
Mottanaite-(Ce).jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₄(Ce,REE)∑₂Al(Be₁.₅☐₀.₅)∑₂[B₄Si₄O₂₂]O₂
ElementsCa, Ce, Al, Be, B, Si, O
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolMot-Ce
Nickel–Strunz class9.DK.20

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

🌍 Where it's found

Type locality (where it was first described): Mount Cavalluccio, Italy