A Titanate of Fe, U, V, Cr, and E—uncertain formula. TiO₂ > 50; E₂O₃ = 5-10%.
Cubic—in grains and rounded crystals.
G = 4 about. Black, with brilliant lustre.
Olary, S. Australia.
Delorenzite.
2FeO,UO₂,2Y₂O₃,24TiO₂. Yttr = 14·63; TiO₂ = 55%.
Rhombic; habit prismatic.
G = 4·7. H = 51⁄2-6. Black; translucent to opaque; lustrous.
Craveggia, Piedmont, Italy.