IMA mineral species

Almarudite

K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀

Cyclosilicate mineral.

OrangeYellow

Properties

Chemical formulaK(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀
ElementsK, Na, Mn, Fe, Mg, Be, Al, Si, O
Crystal systemHexagonal
Mohs hardness6
Density2.72 g/cm³
Streak—
Color—
IMA symbolAlr
Nickel–Strunz class9.CM.05

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

🌍 Where it's found

Type locality (where it was first described): Caspar 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.