Monazite

Monazite is brownish red, yellow or greenish yellow, with a greasy luster or glassy luster. Brittle, hardness 5~5.5, density 4.9 ~ 5.5g/cm3. It often contains uranium, thorium and radium, thus it is radioactive.

Monazite is a major rare earth mineral, with light rare earth (cerium) oxides content 39-74% and heavy rare earth (yttrium) oxides 0-5%. Monazite is used for the extraction of rare earth elements (metals, alloys and compounds). Rare earth elements (metals, alloys and compounds) are widely used in ferrous and nonferrous metallurgy, glass and ceramic production, electronics, electrical lighting, television and laser technology, chemical industry, medical treatment and agricultural production.

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