Xenotime a phosphate ore is one of the valuable mineral deposits of rare earths similar to monazite. Xenotime 0 53cts trillion cut 4 35 x 4 10mm pakistan h4 5 t519 red orange loose gem faceted gemstone jewelry making rare gemstone triangle 1001raregemstones from shop 1001raregemstones. Numerous localities but fine crystals are unusual. 1 the content of yttrium is high while that of the light rare earths is low table 12. Xenotime crystals are similar to the duller zircon.
The xenotime mineral series xenotime describes a group of several closely related phosphates arsenates and vanadates composed of rare earth elements. Xenotime is a yttrium phosphate mineral and is found in igneous rocks and pegmatites and also in quartz and mica rich gneisses. Xenotime gems are usually a translucent yellowish brown to reddish brown with vitreous to resinous luster and a moh s hardness of 4 5. Crystals of gem quality are very rare. Xenotime group s.
Xenotime is a rare earth phosphate mineral the major component of which is yttrium orthophosphate y p o 4. It forms a series with the chernovite and is a rare earth phosphate more often. 2 the content of thorium is lower than that in monazite table 13. Although xenotime is found in many localities throughout the world gem quality crystals are very rare. Identified by berzelius its name is related to the greek word xenos meaning stranger because the crystals were not discovered until later and it was long called cenotime.
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See the pictures. It forms a solid solution series with chernovite y y as o 4 and therefore may contain trace impurities of arsenic as well as silicon dioxide and calcium. Check out our xenotime gemstone selection for the very best in unique or custom handmade pieces from our shops. Xenotime widely distributed phosphate mineral yttrium phosphate ypo 4 though large proportions of erbium commonly replace yttrium that occurs as brown glassy crystals crystal aggregates or rosettes in igneous rocks and associated pegmatites in quartzose and micaceous gneiss and commonly in detrital material. The main characteristics of xenotime are listed below.Xenotime forms translucent to opaque yellowish brown greenish brown reddish brown brown gray prismatic crystals or radial aggregates. Xenotime forms translucent to opaque yellowish brown greenish brown reddish brown brown gray prismatic crystals or radial aggregates. See the pictures. Xenotime is a rare earth phosphate mineral the major component of which is yttrium orthophosphate y p o 4. The xenotime mineral series xenotime describes a group of several closely related phosphates arsenates and vanadates composed of rare earth elements.
The main characteristics of xenotime are listed below. Xenotime a phosphate ore is one of the valuable mineral deposits of rare earths similar to monazite.
