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Gamagarite

Year of discovery: 1943 (Gamagara ridge, South Africa), 2004 (Japan)

Locality list: A locality of gamagarite

• Ba₂Fe(VO₄)₂(OH)
• Ba₂(Fe,Mn)(VO₄)₂(OH)
• [Ba²⁺₂][Fe³⁺][OH|(VO₄)₂]^7-

• Class: Vanadate - Hydroxide

• Ba => Pb: Calderonite

• Fe => Mn: Tokyoite

• Color: Dark brown, Black
• Luster: Adamantine
• Diaphaneity: Translucent-Opaque

• Cleavage: Distinct on {001}, {100}, and {101} (3 planes)
• Hardness: 4.5-5
• Density: 4.6

• System: Monoclinic
• Group: 2/m, P2₁/m
• Lattice: a=9.2, b=6.2, c=7.9, β=112.7