IMA mineral species

Ammoniomagnesiovoltaite

(NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O

Sulfate mineral.

Properties

Chemical formula(NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O
ElementsN, H, Mg, Fe, Al, S, O
Crystal systemCubic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolAmvlt
Nickel–Strunz class7.CC.25

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

🌍 Where it's found

Type locality (where it was first described): Köves Hill, Hungary

  • 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.