They said different varieties of minerals like Peridot, Aquamarine, Topaz in different colors of violet, pink, golden and champagne, Ruby, Emerald, rare-earth minerals Bastnaesite and Xenotime
, Sphene, Tourmaline, besides many types of Quartz made the country prominent in the mineral world.
The source informed that different varieties of minerals like Peridot, Aquamarine, Topaz in different colours of violet, pink, golden and champagne, Ruby, Emerald, rare-earth minerals Bastnaesite and Xenotime
, Sphene, Tourmaline, besides many types of Quartz make the country prominent in the mineral world.
The zircon crystals occur as subhedral to euhedral grains up to 100 [micro]m in diameter that mostly are in contact with other accessory minerals, such as Fe-Ti oxides, apatite, and xenotime
, and exhibit oscillatory zoning (Fig.
The wide-range of gemstones including sapphires from Kashmir, emeralds from Swat, rubies from the northern areas and pink topazes from Katlang, Mardan, and good quality zircon, different varieties of quartz, aquamarine, tourmaline, sphene, spinel, zoisite apatite, epidote, morganite, garnet, scapolite, clino zoisite, xenotime
, bastnaesite, peridot, nephrite, serpentine, red agate, diopside, pargasite, amethyst, scheelite, pollucite, chrome diopside and kunzite are found in mountainous belt from South Waziristan to Chitral, makes the country significant in the mineral world.
Zircon, apatite, xenotime
and monazite are the most common minority minerals.
71) could be due to the presence of U in the crystal structure of Y-rich minerals like xenotime
AMD has established about 2000 tonnes of xenotime
-bearing heavy mineral concentrate containing 2% xenotime
in the riverine heavy mineral placer deposits of Chhattisgarh and Jharkhand.
hosted mineralisation remains open in both cross section and strike.
The exploration target is hydrothermal xenotime
mineralization, a rare earth phosphate mineral.
The mineral Xenotime
(YPO4) is usually associated with phosphorites.
Mineralogical work completed by the company indicated that a wide variety of rare-earth element-bearing minerals have been identified, including apatite, iimoriite, kainosite, gadolinite, allanite, bastnaesite, parisite, brannerite, thalenite, xenotime
, fergusonite, synchysite (Y), and monazite.
Especially since World War II, the pegmatites of the state of Minas Gerais have yielded some of the world's finest specimens of topaz, chrysoberyl, euclase, elbaite, and beryl (in all of its colored varieties); phosphate-rich pegmatites of the same state have furnished the world's finest specimens of brazilianite, beryllonite, eosphorite, hydroxylherderite, amblygonite and more; complex pegmatites of other kinds have provided cassiterite, xenotime
, monazite and several rare-earth species; Brazilian specimens of titanite, phenakite, fluorapatite, kyanite, scheelite, spessartine and bertrandite are among the world's very best.