Chemical and mineralogical characterization of elbaites from the Alto Quixaba pegmatite, Seridó province, NE Brazil

by Ana C.M. Ferreira, Valderez P. Ferreira, Dwight R. Soares, Hugo S. Vilarroel-Leo
Published 2005-12-01

Chemical composition of gahnite and degree of pegmatitic fractionation in the Borborema Pegmatitic Province, northeastern Brazil

by Dwight R. Soares, Hartmut Beurlen, Ana C.M. Ferreira, Marcelo R.R. da-Silva
Published 2007-09-01