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xen·o·time | \ ˈzenəˌtīm \
plural -s
Definition of xenotime
: a mineral YPO4 that is a phosphate of yttrium occurring in usually brown or yellow tetragonal crystals and rolled grains and that often also contains thorium, erbium, cerium, or other elements (hardness 4–5, specific gravity 4.45–4.56)
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