IMA mineral species

Katoptrite

(Mn²⁺,Mg)₁₃(Al,Fe³⁺)₄Sb₅+₂(SiO₄)₂O₂₀

Nesosilicate mineral.

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

Properties

Chemical formula(Mn²⁺,Mg)₁₃(Al,Fe³⁺)₄Sb₅+₂(SiO₄)₂O₂₀
ElementsMn, Mg, Al, Fe, Sb, Si, O
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolKtt
Nickel–Strunz class9.AE.40

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

🌍 Where it's found

Type locality (where it was first described): Brattfors mine, Nordmark Odal field, 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.