Thorough investigation of accessory mineralization was carried out for intragranite rare-metal pegmatites recently discovered in alkaline-granite formation at Kola Peninsula. Those pegmatite bodies keep a particular place ...
Kosmochlor was found in these coastal sediments while sluicing for diamonds in Quaternary sediments of this region; the grains are emerald-green and as large as 0.17 x 0.15 x 0.15 mm. EPMA gave SiO2 52.31, TiO2 0.05, Al2O3 ...