IMA mineral species

Diopside

CaMgSi₂O₆

Pyroxene mineral.

GreenBluePurpleBrownGrayWhite & Clear

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

Properties

⚖ Density3.149 g/cm³
Average
🔷 Monoclinic✏️ streak white
Chemical formulaCaMgSi₂O₆
ElementsCa, Mg, Si, O
Crystal systemMonoclinic
Mohs hardness—
Density3.149 g/cm³
Streakwhite
Color—
IMA symbolDi
Nickel–Strunz class9.DA.15

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

🌍 Where it's found

Type locality (where it was first described): Ala valley, Italy · Brosso, 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.

Varieties & related stones