Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 119

Titanosilicate of Ca, Zr, Na, E, Fe, Mn, with F. ZrO₂ = 18·7-20; Cer = 0·3-2·4%.

Monoclinic, in spherical aggregates.

G = 3·30-3·31. H = 5-6. Orange-grey.

Near Brevik, Sweden.