Monazite spectra

Monazite Visible Spectra (400 - 1000 nm)

Members of the monazite group are rare earth phosphates, MPO₄ where M is a rare earth element, Th, Ca or Bi. The spectra of both samples below are dominated by Nd absorptions.

Image of the Monazite absorption spectrum
Monazite GRR 645 full spectrum; GRR 645 visible region spectrum from Montgomery County, North Carolina; unpolarized data. Data File.
Monazite GRR 2349 spectrum; Presumably, monazite-(Ce) from the Lakeview Mountains, near Nuevo, Riverside County, California. This is an orange-brown 0.810 mm thick sample. The color is from its rare-earth content. Data File (these are unpolarized data from a (100) slab). Expanded view showing the near-infrared region to 3000 nm.

Link to references about the spectra of monazite

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Monazite Visible Spectra (400 - 1000 nm)

Image of the Monazite absorption spectrum

Link to references about the spectra of monazite