bastnaesite


Also found in: Dictionary, Thesaurus.

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 ?
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 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.
Extended mine life from 25 years to in excess of 50 years from the weathered Bastnaesite Zone
The Bastnaesite Zone weathered mineralisation is the high grade, near surface central portion of the greater Ngualla Mineral Resource amenable to a proven, low cost simple sulphuric acid processing route and targeted for production in the initial 25 years of the operation and beyond.
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.
In addition to being a readily available rare-earth resource, and having a well-understood and commercially proven metallurgical process, monazite is valued for containing more of the lucrative heavy rare-earths than does bastnaesite, which has been the other industry-standard rare-earth ore mineral for the last 50 years.
The initial mixed concentrate was produced from four separate feedstocks, each originally containing bastnaesite, monazite, xenotime and ionic-clay materials, respectively.
Mountain Pass also has large stockpiles of bastnaesite concentrates located on the property.
The main REE mineral identified in the oxidized material is the carbonate bastnaesite ((REE)CO(3)(F,OH)), which is one of the principal commercially mined REE minerals.
REE minerals include bastnaesite, parisite, synchysite, monazite and cerianite.