 | | Book | | granite ... (with feldspar, silver-whit� . •·ea , and zircon), 1 discovered Gadolinite occurring as twisted...Gadolinite crystals with lateral faces overgrown with zircon. All Gadolinite crystals were found in the dumps...occurs with feldspar, micas. nepheline, magnetite, zircon, and pyrochlore in an alkaline pegmatite. It forms...syenite pegmatite of the Tatarskii Massif, Tatarka River, Enisei �ange, Krasnoyarsk Territory, Siberia. The...in 1 956 in the core of a borehole in the Aksai Valley at the giant Chelkar salt dome, Uralsk district |  | | Book | | STATES and CANADA BRITISH COLUMBIA Ice River complex. The Ice River complex is an intrusive body of alkaline...west-southwest from a mountain massif to join the Reuss River at the town of Amsteg, subordinate drainages running...crystals from 2 to 5 cm across occur with good brown zircon crystals (Britvin, Ivanyuk andYakovenchuk, 1995;...is the source of the large, lustrous, rich brown zircon crystals which arguably are world's best for the...matrix of white albite, sometimes with the brown zircon crystals. Evseev (1995a) gives 11 cm as the maximum |
|
