Литосфера (Jan 2016)
New data on mineralogy of granitic pegmatites Mt. Soroch′ya, Southern Urals
Abstract
Mineralogy of granitic pegmatites of Mt. Soroch′ya near Zlatoust which ore included in the Upper Riphean metamorphic mica-garnet, staurolite-garnet, and wollastonite-sillimanite-garnet schists of the Kuvash Formation is examined. Zonal pegmatite veins 30-600 m long and 1-40 m thick are composed of (from margin to centre): 1) pegmatoic quartz-two-feldspar with muscovite and biotite; 2) graphic muscovite-quartz-two-feldspar; 3) blocky with large crystals of microcline, muscovite (up to 10 cm) and quartz in small-grained quartz-albite aggregate; and 4) quartz core zones. The composition of formerly known mica, tourmaline, zircon, rutile and first time discovered xenotime-(Y), monazite-(Ce), Ta-bearing rutile (“strьverite”), and gold is ore described.
