Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 112
Pyrophanite.
ОглавлениеMnTiO₃, with traces of SiO₂. TiO₂ = 50-53%.
Rhombohedral; isomorphous with Ilmenite.
G = 4·537. H = 5. Deep blood-red; translucent; lustrous.
Pajsberg, Sweden.