4 Photos
Fergusonite-beta-Y
Chemical Formula	YNbO4
Species	Oxides & Hydroxides

Fergusonite

Technology definitions

Definition：

The chemical formula is YNbO4, is tetragonal oxide mineral. Is the extraction of yttrium, cerium rare earth, niobium, tantalum, manufacturing alloy steel mineral raw materials.

Applied science:

Materials science and Technology ( a subject ); natural materials ( two subjects ); mineral ( three subjects )

The above content by the National Committee for terms in sciences and technologies validation published

Form

YNbO4 or Y ( Nb, Ta ) O4, different occurrence conditions, fergusonite of rare earth elements in different types and content. Often, uranium, thorium containing cerium, titanium or tantalum.

Quality standard

The placer or primary ore by enrichment obtained fergusonite concentrate product quality should be consistent with the rare earth industry standard XB/T106 - 95

Deposit

Mainly in granite and pegmatite, also found in placer deposits. Can also be found in the basic rock and ore deposits related to, and xenotime, monazite, zircon, quartz and biotite symbiosis.

Nature

Fergusonite is tetragonal oxide mineral, which belongs to the rare-earth niobates mineral. Usually containing a small amount of uranium, thorium and other. Usually lumpy or granular aggregates, color is yellow-brown to dark brown, fresh section forms a resinous luster or semi metallic luster.

British physicist R. Ferguson ( Robert Ferguson ) of the name. And FORMANITE ( FORMANITE ) YTaO4 into complete isomorphous series. Moss hardness of 5.5 ~ 6.5, 5 ~ 56.8 proportion. With the increase of Ta content, proportion is also gradually increased, FORMANITE accounted for 6.24～ 7.03. With the deepening degree of hardness of water becomes low. As a result of fergusonite stable chemical properties, it can form the eluvial and alluvial placer, and monazite, xenotime, zircon, ilmenite or cassiterite Co.