IMA mineral species

Proto-ferro-suenoite

☐Mn₂²⁺Fe₅²⁺Si₈O₂₂(OH)₂

Mg-Fe-Mn-amphibole, double chain inosilicate mineral.

Proto-ferro-suenoite specimen
Proto-ferro-suenoite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula☐Mn₂²⁺Fe₅²⁺Si₈O₂₂(OH)₂
ElementsMn, Fe, Si, O, H
Crystal systemOrthorhombic
Mohs hardness5 – 6
Density—
Streakwhite
Color—
Cleavage{210}
IMA symbolPfsue
Nickel–Strunz class9.DD.05

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