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nouna mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
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Definition that contains ytterbite
- tb a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
- terbium a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
- atomic number 65 a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite