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Maghemite [abbr. Mgh ]

Year of discovery: 1927 (Bushveld, South Africa), 1949 (Japan)

Locality list: 28 localities of maghemite

• Fe₂O₃
• [Fe³⁺_0.37[]_0.33][Fe³⁺₂][O₄]^8-
• γ-[Fe³⁺₂][O₃]^6-

• Class: Spinel subgroup < Oxyspinel group < Spinel supergroup
• Class: Oxide
• Magnetism: Ferromagnetic
• Formed by weathering alteration of Magnetite.

• Polymorph: Hematite (α, Trigonal)

• Fe => Mn: Bixbyite (γ)
• Fe => Al: Corundum (α)
• Fe => Cr: Eskolaite
• Fe => V: Karelianite
• Fe => Ti: Tistarite
• Fe => As: Arsenolite, Claudetite
• Fe => Sb: Sénarmontite (Senarmontite), Valentinite
• Fe => Bi: Bismite, Sphaerobismoite

• Color: Dark brown
• Streak: Brown
• Luster: Metallic
• Diaphaneity: Opaque

• Cleavage: No
• Hardness: 6
• Density: 4.9

• System: Cubic
• Group: 23, P2₁3
• Lattice: a=8.3