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Xenotime-(Y)
A valid IMA mineral species - grandfathered
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Xenotime-(Y) was found by the Norwegian mineralogist Nils Otto Tank (1800-1864) and first described by the Swedish chemist Jøns Jacob Berzelius in 1824 asPhosphorsyrad Ytterjord from a granite pegmatite at Hidra, Flekkefjord, Norway. Later, Glocker (1831) introduced the nameYtterspath. The name xenotime was finally coined by the French mineralogist François Sulpice Beudant (1832) in his 2. edition ofTraité élémentaire de Minéralogie. The name is from the Greek κενός = "vain" and τιμή = "honor," in allusion to the fact that the yttrium in it was first mistaken by Berzelius for a new element (Yttrium was discovered already in 1794). It was later renamed as xenotime-(Y), with a suffix, -(Y), in according to the "Levinson modifiers" (Levinson 1966).
Type Locality:
Isostructural with:
Xenotime Group.Chernovite-(Y)-Xenotime-(Y) Series. The P (or phosphate) analogue ofchernovite-(Y) andwakefieldite-(Y).
The Y analogue ofxenotime-(Yb) andxenotime-(Gd).
A recent find of As-rich xenotime-(Y), accompanied bywakefieldite-(Ce) -wakefieldite-(Y) solid solution, in a silicifiedAgathoxylon wood is described by Matisová et al. (2016).
An interesting, strongly fluorine-enriched xenotime-(Y), was described from Madeira pluton, Pitinga, Brasil. It is though to contain some PO3F anions in the structure.
Possibly crystallochemically related toschiavinatoite /béhierite (Nb,Ta)BO4 (Ondrejka et al., 2022).
The Y analogue ofxenotime-(Yb) andxenotime-(Gd).
A recent find of As-rich xenotime-(Y), accompanied bywakefieldite-(Ce) -wakefieldite-(Y) solid solution, in a silicifiedAgathoxylon wood is described by Matisová et al. (2016).
An interesting, strongly fluorine-enriched xenotime-(Y), was described from Madeira pluton, Pitinga, Brasil. It is though to contain some PO3F anions in the structure.
Possibly crystallochemically related toschiavinatoite /béhierite (Nb,Ta)BO4 (Ondrejka et al., 2022).
