bastnaesite


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bastnaesite

[′bast·nə‚sīt]
(mineralogy)
(Ce,La)CO3(F,OH) A greasy yellow to reddish-brown fluorocarbonate rare-earth metal mineral; source of rare earths, for example, cerium and lanthanum.
References in periodicals archive ?
The weathered Bastnaesite Zone is now a high confidence, well defined Mineral Resource with 86% in the highest 'Measured' JORC category
Test work was successfully completed to develop and demonstrate a simple metallurgical process for Ngualla's weathered bastnaesite mineralisation.
Fundamental geological aspects of the central Bastnaesite Zone targeted for first production offer distinct advantages for development over other rare earth projects.
The weathered Bastnaesite Zone can support a mine life of over 50 years at a 10,000tpa REO production level.
The revised Scoping Study and economic assessment completed during the quarter incorporated the new Mineral Resource, which supports a mine life of over 50 years from the Bastnaesite Zone alone, at a grade of 5.
The world famous gems minerals like Blue Spinel, Pink topaz, Peridot, Tourmaline, Chrome Tourmaline, Sphene, Aquamarine, Ruby, Emerald, rareearth minerals like bastnaesite and xenotim besides many varieties of quartz such as beta and faden Quartz are found in Pakistan and this God gifted mineral wealth could be explored through an effective marketing and exhibitions oversees for which role of commercial consulars, diplomats are of significant importance.
Peak has updated the December 2012 Scoping Study and preliminary economic assessment to reflect the significant improvements in costs and option to increase production as a result of recent positive beneficiation test work results and a higher grade and increased Mineral Resource for the weathered Bastnaesite Zone at Ngualla.
The infill drilling was completed to increase the amount of weathered mineralisation in the Bastnaesite Zone classified as 'Measured' or 'Indicated' Mineral Resource and provide the definition required for a detailed mine plan and schedule for the project to support the Pre-Feasibility Study now in progress.
Junmei Zhao, on behalf of her colleague, Deqian Li, of the Changchun Institute of Applied Chemistry in China, detailed a method for the extraction of cerium from bastnaesite, one of the many rare earth bearing minerals found in the Nechalacho ore, using reagents developed by Cytec Canada.
The results to date have indicated that the light rare earths (LREE) in the Nechalacho deposit are contained in four minerals: allanite, monazite, bastnaesite and synchisite, and the heavy rare earths (HREE) are present in two minerals: fergusonite and zircon, the latter also being host to zirconium (Zr).
In addition to the expected significant intercepts Basal Zone, many of the holes drilled in the North Tardiff Lake area intersected interesting TREO values in the Upper Zone in association with zones of semi-massive bastnaesite mineralization.
The gemstones displayed in the exhibition included Emeralds, Rubies, Peridots, Aquamarines, Topaz, Tourmalines, Corundum, Quartz, Garnets, Bastnaesites, Xenotimes, Sphenes, Amethysts, and Zircons etc.