bastnaesite
bastnäsite

The arfvedsonite granites contain minerals rich in rare earth element minerals such as pyrochlore and bastnaesite.

When bastnaesite started being processed for rare earth content in about 1965, it too was converted to a version of rare earth chloride, and on to Mischmetal.

These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz.

The gangue minerals of barite and silica generally do not contain rare earth inclusions and have discrete grain boundaries with bastnaesite, indicating that grinding will separate these minerals.

In December 2012, Peak Resources announced - as part of their planned beneficiation process of the Ngualla deposit - that results had shown an intimate association between iron oxide and rare earth minerals (hematite and bastnaesite).

At Mountain Pass, bastnäsite is the leading ore mineral.

Monazite was the only significant source of commercial lanthanides until bastnäsite began to be processed in about 1965.

It is present in significant quantities in the ore minerals monazite and bastnäsite.

Lanthanum is most commonly obtained from monazite and bastnäsite.

The mineral bastnäsite is named after Bastnäs.

It is produced from the minerals monazite and bastnäsite using a complex multistage extraction process.

In general, there is more lanthanum in bastnäsite than in monazite.

Gadolinium is produced both from monazite and bastnäsite.

Europium is found in minerals xenotime, monazite, and bastnäsite.

Until 1949, bastnäsite was a rare and obscure mineral, not even remotely contemplated as a potential commercial source for lanthanides.

Gadolinium is a constituent in many minerals such as monazite and bastnäsite, which are oxides.

By contrast, in China, processing of bastnäsite, after concentration, starts with heating with sulfuric acid.

The principal ores are monazite and bastnäsite.

Many minerals contain europium, with the most important sources being bastnäsite, monazite, xenotime and loparite.

Monazite sands usually contain all the lanthanide elements, but the heavier elements are lacking in bastnäsite.

In a small zone at the northern edge of the syenite, the T-Zone, minerals like bastnäsite, phenakite and xenotime can be found.

Rare earth elements are found in the minerals bastnäsite, loparite, xenotime, and monazite in mineable quantities.

Californian bastnäsite now faces stiff competition from Bayan Obo, China, with an even "richer" europium content of 0.2%.

There is little difference in the three in terms of physical properties and most bastnäsite is bastnäsite-(Ce).

In 1949, the huge carbonatite-hosted bastnäsite deposit was discovered at Mountain Pass, San Bernardino County, California.

The principal sources of rare earth elements are the minerals bastnäsite, monazite, and loparite and the lateritic ion-adsorption clays.

Parisite could be viewed as a formula unit of calcite (CaCO) added to two formula units of bastnäsite.

The area has an abundance of fluorine minerals such as fluorite and more rare minerals such as cryolite, bastnäsite and tysonite.

The bastnäsite mined there is especially rich in the light rare earth elements (La-Gd, Sc, and Y) and contains only 0.1% of europium.

Most bastnäsite is bastnäsite-(Ce), and cerium is by far the most common of the rare earths in this class of minerals.