IMA mineral species

Eirikite

KNa₆Be₂(Si₁₅Al₃)O₃₉F₂

Transitional structure between phyllosilicate and other silicate unit, mineral.

Eirikite specimen
Eirikite, Leifite-174735.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaKNa₆Be₂(Si₁₅Al₃)O₃₉F₂
ElementsK, Na, Be, Si, Al, O, F
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolEir
Nickel–Strunz class9.EH.25

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

🌍 Where it's found

Type locality (where it was first described): Vesle Arøy island, Norway

  • 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.