IMA mineral species

Ferrisanidine

K[Fe3 Si3O8]

Feldspar group mineral.

Ferrisanidine specimen — Ferrisanidine.png · Wikimedia Commons (see file page for author & license)

Properties

⚖ Density2.722 g/cm³

Average

🔷 Monoclinic

Chemical formula	K[Fe3 Si3O8]
Elements	K, Fe, Si, O
Crystal system	Monoclinic
Mohs hardness	—
Density	2.722 g/cm³
Streak	—
Color	—
IMA symbol	Fsa

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

🌍 Where it's found

Type locality (where it was first described): Arsenatnaya fumarole

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.

Learn more

Ferrisanidine on Mindat.org
Wikidata item Q80196243 (source of this page's data – you can correct it there)