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Ulvöspinel, Ulvospinel [abbr. Usp ]

Year of discovery: 1943 (Grundhamn mine, Sweden), 1965 (Japan)

Locality list: 21 localities of ulvöspinel

• Fe₂TiO₄
• [Ti⁴⁺][Fe²⁺₂][O₄]^8-

• Class: Ulvöspinel subgroup < Oxyspinel group < Spinel supergroup
• Class: Oxide

• Fe => Mg: Qandilite

• Ti => Ge: Brunogeierite
• Ti => Cu: Cuprospinel
• Ti => Zn: Franklinite
• Ti => Mn: Jacobsite
• Ti => Mg: Magnesioferrite
• Ti => Fe: Magnetite
• Ti => Ni: Trevorite

• Color: Black
• Luster: Metallic
• Diaphaneity: Opaque

• Hardness: 5.5-6

• System: Cubic
• Group: m3m, Fd3m
• Lattice: a=8.5