Well-known minerals containing cerium and the light lanthanides include bastn�site, monazite, allanite, loparite, ancylite, parisite, lanthanite, chevkinite, cerite, stillwellite, britholite, fluocerite, and cerianite.
2.
The lanthanite crystal structure consists of layers of 10-fold coordinated REE-oxygen ( O ) polyhedra and carbonate ( CO 3 2-) groups connected by hydrogen bonds to interlayer water molecules, forming a highly hydrated structure.
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Outstanding examples of this include monazite crystals from the tin deposits in Llallagua, Bolivia; ancylite from Mont Saint-Hilaire, Quebec, Canada; or lanthanite from the mercury vapor, with the unfiltered shortwave UV light causing neodymium-containing minerals to reflect a distinctive green color.
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