[ Top ] [ Japanese ]

Hydroniumjarosite

Year of discovery: 1960 (Thorez mine, Poland, and Staszic mine, Poland), 1994 (Japan)

Locality list: 2 localities of hydroniumjarosite

• (H₃O)Fe₃(SO₄)₂(OH)₆
• [(H₃O)⁺][Fe³⁺₃][(OH)₆|(SO₄)₂]^10-

• Class: Alunite group < Alunite supergroup
• Class: Oxonium - Sulfate - Hydroxide
• Soluble in: HCl
• Insoluble in: Water

• H₃O => K: Jarosite
• H₃O => Na: Natrojarosite
• H₃O => Ag: Argentojarosite
• H₃O => NH₃: Ammoniojarosite
• H₃O => Pb: Plumbojarosite
• H₃O => Tl: Dorallcharite

• Color: Yellowish brown
• Streak: Pale yellow
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: Distinct on {0001} (1 plane)
• Hardness: 4-4.5
• Density: 3.0

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=7.2, c=16.6