1.- "Paraiba" tourmaline and similar looking materials Gemmological Association of Great Britain; Society of Jewellery Historians; London; GBR; United King, 2008 Ver registro 2.- A COMBINED MAGNETIC RESONANCE AND GAMMA-IRRADIATION STUDY OF SOME GREEN BERYLS GEMMOLOGICAL ASSOCIATION OF AUSTRALIA; SYDNEY, N.S.W.; AUS; AUSTRALIA, 1994 BILL HICKS MEMORIAL ISSUE; PART 1 Ver registro 3.- A PROVINCIA PEGMATITICA ORIENTAL DO BRAZIL A LUZ DOS CONTECIMENTOS ATUAIS; 1986 Ver registro 4.- A PROVINCIA PEGMATITICA ORIENTAL DO BRAZIL A LUZ DOS CONTECIMENTOS ATUAIS; 1986 Ver registro 5.- AGUAMARINA; 1985 Ver registro 6.- Alexandrite von Minacu, Goias, Brasilien: ein primaeres Vorkommen ;Alexandrite from Minacu, Goias, Brazil; a primary deposit Deutsche Gemmologische Gesellschaft e.V.; Idar-Oberstein; DEU; Germany, 2010 Ver registro 7.- Aquamarine; blame Pliny! Interweave Press; Loveland, CO; USA; United States, 2005 Ver registro 8.- Aracuai pegmatite minerals; mining in the heart of Brazil's gemstone country Miller Magazines; Ventura, CA; USA; United States, 2011 Ver registro 9.- ASTERISM IN BERYL, AQUAMARINE AND EMERALD; AN UPDATE GEMMOLOGICAL ASSOCIATION AND GEM TESTING LABORATORY OF GREAT BRITAIN; LONDON; GBR; UNITED KINGDOM, 2004 Ver registro 10.- BAHIA; CADASTRO DO PRODUTOR MINERAL, 1997 ;BAHIA; 1997 MINERAL PRODUCTION FRAMEWORK 1997 Ver registro
