Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 121
Rutile.
ОглавлениеTitanium dioxide; TiO₂ = 98-100%
Tetragonal; habit prismatic.
G = 4·18-4·25. H = 6-61⁄2. Reddish-brown to black.
Very widely in Europe and America.