Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 40

Churchite.

Оглавление

Hydrous phosphate of Cerium metals and Ca; Cer = 51·87%.

Monoclinic? Allegations only.

G = 3·14. H = 312. Greyish; transparent to translucent.

Cornwall.

The Rare Earths: Their Occurrence, Chemistry, and Technology

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