IMA mineral species

Ferri-obertiite

Na(Na₂)(Mg₃Fe³⁺Ti)(Si₈O₂₂)O₂

Oxo amphibole mineral, double chain inosilicate.

Ferri-obertiite specimen
Obertiite4478-4.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaNa(Na₂)(Mg₃Fe³⁺Ti)(Si₈O₂₂)O₂
ElementsNa, Mg, Fe, Ti, Si, O
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolFob

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

🌍 Where it's found

Type locality (where it was first described): Rothenberg basalt quarry, Germany

  • 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.