Adranosite

Adranosite is a mineral discovered in the La Fossa crater, Vulcano, Aeolian Islands, Italy, with the formula (NH₄)₄NaAl₂(SO₄)₄Cl(OH)₂. Adranosite-(Fe) is the Fe3+ analogue of adranosite, with the formula (NH₄)₄NaFe₂(SO₄)₄Cl(OH)₂.^[4]

Adranosite
General
Category	ammonium sulfate chloride
Formula	(NH4)4NaAl2(SO4)4Cl(OH)2
IMA symbol	Arn[1]
Crystal system	Tetragonal
Crystal class	Ditetragonal Dipyramidal
Identification
References	[2][3]