Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 40
Churchite.
ОглавлениеHydrous phosphate of Cerium metals and Ca; Cer = 51·87%.
Monoclinic? Allegations only.
G = 3·14. H = 31⁄2. Greyish; transparent to translucent.
Cornwall.