Crystopedia
IMA mineral species

Fayalite

Fe²⁺₂SiO₄

Olivine, nesosilicate mineral.

YellowGoldGreenBrown

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

Properties

Chemical formulaFe²⁺₂SiO₄
ElementsFe, Si, O
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolFa
Nickel–Strunz class9.AC.05

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

🌍 Where it's found

Type locality (where it was first described): Faial Island, Portugal

  • 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.

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