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Cordylite.

Оглавление

Fluocarbonate of Cerium metals and Ba; E₂F₂Ba(CO₃)₃. Cer = 49·4%.

Hexagonal; isomorphous with Parisite (q.v.).

G = 4·31. H = 412. Yellow; transparent.

Plain of Narsarsuk, Greenland.

The Rare Earths: Their Occurrence, Chemistry, and Technology

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