IMA mineral species

Ferrihollandite

Ba(Mn⁴⁺₆Fe⁺₂)O₁₆

Oxide mineral.

Ferrihollandite specimen
Hollandite-Quartz-sea72a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaBa(Mn⁴⁺₆Fe⁺₂)O₁₆
ElementsBa, Mn, Fe, O
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolFhol
Nickel–Strunz class4.DK.

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