IMA mineral species

Ammoniojarosite

(NH)₄Fe³⁺₃(SO₄)₂(OH)₆

Alunite supergroup, sulfate mineral.

Properties

Chemical formula(NH)₄Fe³⁺₃(SO₄)₂(OH)₆
ElementsN, H, Fe, S, O
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolAjrs
Nickel–Strunz class7.BC.10

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

🌍 Where it's found

Type locality (where it was first described): Kane County, United States

  • 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.