bastnaesite


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bast·naes·ite

or bast·näs·ite also bast·nas·ite  (băst′nə-sīt′)
n.
A yellowish to reddish-brown mineral, (Ce,La, Y)CO3F, that is a source of several rare-earth elements including gadolinium, samarium, and neodymium.

[After Bastnäs, a mine in south-central Sweden.]

bastnaesite

(ˈbæstnəˌsaɪt) or

bastnasite

n
(Minerals) a rare yellow to reddish-brown mineral consisting of a carbonate of fluorine and several lanthanide metals. It occurs in association with zinc and is a source of the lanthanides. Formula: LaFCO3
[C19: from Swedish bastnäsit, after Bastnäs, Sweden, where it was found]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.bastnaesite - a yellow-to-brown mineral that is a source of rare earth elements
atomic number 58, Ce, cerium - a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
atomic number 60, Nd, neodymium - a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
atomic number 59, Pr, praseodymium - a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
atomic number 62, samarium, Sm - a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
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.
Mineralization occurs in numerous and extensive veins containing nearly pure bastnaesite and monazite minerals, and 408 in-situ veins have been identified to date.
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 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.
and Gansu Rare Earth New Material Limited-Liability Company, the medium and heavy RE production base built around the Southern China ionic mine represented by Guangzhou Pearl River Smelter and JAMR, and the bastnaesite production base built around the bastnaesite mine in Mianning, Sichuan.
Fundamental geological aspects of the central Bastnaesite Zone offer distinct advantages for development over other rare earth projects.
Bastnaesite occurs as a primary mineral, while monazite is found
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.
The minerals identified included bastnaesite, yttrofluorite, yttrocerite, columbite, changbaiite, and kasolite.
In 2013, 50% to 60% of the global production of REM (130,000-140000 mt) originated from the Bayan Obo mine; the rest came from about 15 smaller mines working ion adsorption-type and bastnaesite deposits in southern China.
Scenarios under consideration include the production of intermediate products of a bastnaesite mineral concentrate (which as a result of the absence of radioactivity in Ngualla's mineralisation can be transported anywhere in the world); a mixed rare earth carbonate product (which may be sold or toll treated); commencing production at a smaller scale than the 10,000t per annum contained rare earth oxide (REO) base case, and subsequently increasing production through to 20,0000t REO per annum.
World-class crystal of minerals like bastnaesite, brookite, xenotine and other rare minerals, make Pakistan unique in the international markets.