Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 104

CaTiO₃, with traces of Fe´´. TiO₂ = 58·9%.

Pseudo-cubic? Optically biaxial.

G = 4·017. H = 5¹⁄₂. Yellow; transparent to opaque.

The Urals; Switzerland; Tyrol, etc.