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Zaïrite, Zairite

Year of discovery: 1975 (Eta-Etu, Congo), 2021 (Japan)

Locality list: A locality of zaïrite

• BiFe₃(PO₄)₂(OH)₆
• [Bi³⁺][Fe³⁺₃][(OH)₆|(PO₄)₂]^12-

• Class: Plumbogummite group < Alunite supergroup
• Class: Phosphate - Hydroxide

• Fe => Al: Waylandite

• Color: Green, Pale yellowish green
• Streak: White
• Luster: Waxy
• Diaphaneity: Translucent

• Cleavage: No
• Hardness: 4.5
• Density: 4.4

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=7.0, c=16.4