Bastnäsite

Crystal structure of bastnaesite-(Ce) Color code: Carbon, C: blue-gray, Florine, F: green; Cerium, Ce: white, Oxygen, O: red

Bastnäsite crystal, Zagi Mountain, Federally Administered Tribal Areas, Pakistan. Size: 1.5×1.5×0.3 cm.

The mineral bastnäsite (or bastnaesite) is one of a family of three carbonate-fluoride minerals, which includes bastnäsite-(Ce) with a formula of (Ce, La)CO₃F, bastnäsite-(La) with a formula of (La, Ce)CO₃F, and bastnäsite-(Y) with a formula of (Y, Ce)CO₃F. Some of the bastnäsites contain OH- instead of F- and they receive the name of hydroxylbastnasite. Most bastnäsite is bastnäsite-(Ce), and cerium is by far the most common of the rare earths in this class of minerals. Bastnäsite and the phosphate mineral monazite are the two largest sources of cerium and other rare earth elements.

单词	Bastnasite
释义	Bastnasite 英语百科 Bastnäsite The mineral bastnäsite (or bastnaesite) is one of a family of three carbonate-fluoride minerals, which includes bastnäsite-(Ce) with a formula of (Ce, La)CO₃F, bastnäsite-(La) with a formula of (La, Ce)CO₃F, and bastnäsite-(Y) with a formula of (Y, Ce)CO₃F. Some of the bastnäsites contain OH- instead of F- and they receive the name of hydroxylbastnasite. Most bastnäsite is bastnäsite-(Ce), and cerium is by far the most common of the rare earths in this class of minerals. Bastnäsite and the phosphate mineral monazite are the two largest sources of cerium and other rare earth elements.
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Bastnasite

Bastnäsite