IMA mineral species

Donwilhelmsite

CaAl₄Si₂O₁₁

Silicate mineral.

Properties

Chemical formulaCaAl₄Si₂O₁₁
ElementsCa, Al, Si, O
Crystal systemHexagonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolDwh

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

🌍 Where it's found

Type locality (where it was first described): Oued Awlitis 001, Western Sahara

  • 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.