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Brazil | |
| www.minsocam.org (2004) http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/2002/Eeckhout_p1297-1306_02.pdf |
| Betts, John (n.d.) John Betts website listing. Sauer, Jules Roger (1982) Brazil - Paradise of Gemstones. Gemological Institute of America (GIA) |
| Palinkaš, S. S., Wegner, R., Čobić, A., Palinkaš, L. A., De Brito Barreto, S., Váczi, T., & Bermanec, V. (2014). The role of magmatic and hydrothermal processes in the evolution of Be-bearing pegmatites: Evidence from beryl and its breakdown products. American Mineralogist, 99(2-3), 424-432. |
| Specimens sold by Richard Gaines in 1972-Rock Currier |
| De Ascenção Guedes, R., Lebocey, J., Bayle, L.-D., Chappero, P.-J. (2011) Munich 2011. Le Règne Minéral, 17 (102) Les Éditions du Piat. 10-29 |
| Palinkaš, S. S., Wegner, R., Čobić, A., Palinkaš, L. A., De Brito Barreto, S., Váczi, T., & Bermanec, V. (2014). The role of magmatic and hydrothermal processes in the evolution of Be-bearing pegmatites: Evidence from beryl and its breakdown products. American Mineralogist, 99(2-3), 424-432. |
| In Coll. Martin Slama |
| Fernando Brederodes Collection |
Alto do Giz pegmatite, Equador, Rio Grande do Norte, Brazil