id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
esrj-21189	Akintola, O. F; Adekeye, J. I. D.	MINERALIZATION POTENTIALS OF PEGMATITES IN THE NASARAWA AREA OF CENTRAL NIGERIA	2008	22	.pdf	application/pdf	12800	445	66	White Micas (Muscovites) in the Pegmatites The average chemical composition of the muscovites is typical of rare element pegmatites with high, F, Cs, Rb and Li (Deer et al., 1966; Gordiyenko, 1971) The low average Nb/Ta ra- tio for the muscovites (2.965) is still lower than the (4±0.7) upper limit diagnostic of Ta-pegmatites (Cerny, 1989).	cache/esrj-21189.pdf	txt/esrj-21189.txt