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1.- Granitic pegmatites as sources of colored gemstones
Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralo, 2012
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2.- The Pederneira Pegmatite, Minas Gerais, Brazil; geology and gem tourmaline
Gemological Institute of America; Santa Monica, CA; USA; United States, 2011
Proceedings of the Fifth international gemological symposium
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3.- Tourmaline; the kaleidoscopic gemstone
Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralo, 2011
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