Tremendous expansion of high-technology applications of rare metals and specialty
minerals requires periodic reassessment of their geological sources, keeping in mind the …

Within the broad spectrum of granitic pegmatites, economic tantalum concentrations are
encountered only in those of the orogen-related rare-element class. These are located in …

The Tanco pegmatite deposit at Bernic Lake, in southeastern Manitoba, is a virtually
completely hidden, essentially undeformed, subhorizontal, bilobate, saddle-shaped body …

In the Tanco pegmatite, one of the world's major Ta deposits, tantalum mineralization shows
a complexity that reflects the complex petrogenesis of its host pegmatite. Micas are common …

Abstract The Tashisayi Li deposit was newly discovered in the eastern part of the Tashisayi
batholith, located in the Altyn Tagh region of Northwest China. A Li-rich composite pegmatite …

Rare-element pegmatites are widespread in four provinces of the Canadian Shield. The
pegmatite population of each province displays typical structural control, igenous affiliation …

Coarse crystals of niobian rutile occur in the hydrothermally altered core-margin zone of the
McGuire granitic pegmatite, Park County, Colorado, associated with potassium feldspar …

The systematics of the columbite group have been studied to quantify variations in
composition and structure. Multiple regression methods involving 89 heated samples and …

The geochemical evolution of beryl in the Bikita rare-element granitic pegmatite, in
Zimbabwe, was examined by analyzing this mineral for alkali elements in 23 samples from …

Columbite-group minerals and ixiolite with extremely variable concentrations of scandium
are widespread in moderately to highly fractionated rare-element granitic pegmatites …