The xenotime group is a grouping of mainly

phosphate Phosphates are the naturally occurring form of the element phosphorus. In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthop ...

and

vanadate In chemistry, a vanadate is an anionic coordination complex of vanadium. Often vanadate refers to oxoanions of vanadium, most of which exist in its highest oxidation state of +5. The complexes and are referred to as hexacyanovanadate(III) and no ...

minerals in the

tetragonal crystal system In crystallography, the tetragonal crystal system is one of the 7 crystal systems. Tetragonal crystal lattices result from stretching a cubic lattice along one of its lattice vectors, so that the cube becomes a rectangular prism with a squa ...

. They are chemically related to the

monoclinic In crystallography, the monoclinic crystal system is one of the seven crystal systems. A crystal system is described by three Vector (geometric), vectors. In the monoclinic system, the crystal is described by vectors of unequal lengths, as in t ...

monazite group.

Xenotime group members

Members of the xenotime group include:Page ''Xenotime Group: Mineral information, data and localities'' on *Phosphates: **

Xenotime Xenotime is a rare-earth phosphate mineral, the major component of which is yttrium orthophosphate ( Y P O4). The phosphate ions are described by a tetrahedral shape and coordinate to the center Y3+ metal ion in a way that closely resembles the s ...

*** Xenotime-(Y): ***

Xenotime-(Yb) Xenotime is a rare-earth phosphate mineral, the major component of which is yttrium orthophosphate ( Y P O4). The phosphate ions are described by a tetrahedral shape and coordinate to the center Y3+ metal ion in a way that closely resembles the s ...

: ***

Xenotime-(Gd) Xenotime-(Gd) is the gadolinium endpoint of Xenotime with the ideal formula . It is one of the few known gadolinium-dominant rare earth minerals. Discovery Xenotime deposits rich in gadolinium were reported in 2023 from the Slovak Ore Mountains ...

: ** Pretulite: *Arsenates: ** Chernovite *** Chernovite-(Y): *Vanadates: ** Wakefieldite *** Wakefieldite-(Y): *** Wakefieldite-(La): *** Wakefieldite-(Ce): *** Wakefieldite-(Nd):

References

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