IMA mineral species

Holmquistite

Li₂(Mg₃Al₂)Si₈O₂₂(OH)₂

Li-amphibole mineral, double chain inosilicate.

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

Properties

Chemical formulaLi₂(Mg₃Al₂)Si₈O₂₂(OH)₂
ElementsLi, Mg, Al, Si, O, H
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streak—
Color—
Cleavageperfect
IMA symbolHlm
Nickel–Strunz class9.DD.05

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

🌍 Where it's found

Type locality (where it was first described): Utö nature reserve, Sweden

  • 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.