IMA mineral species

Monticellite

CaMgSiO₄

Olivine, nesosilicate mineral.

GrayWhite & Clear

Monticellite specimen
Monticellite-D1056b.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCaMgSiO₄
ElementsCa, Mg, Si, O
Crystal systemOrthorhombic
Mohs hardness—
Density2.957 g/cm³
Streak—
Color—
IMA symbolMtc
Nickel–Strunz class9.AC.10

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

🌍 Where it's found

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

  • 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.