Giuliani Gaston auteur aut IRD Chaussidon M. auteur aut IRD Schubnel H.J. auteur aut IRD Piat D.H. auteur aut IRD Rollion-Bard C. auteur aut IRD France-Lanord C. auteur aut IRD Giard D. auteur aut IRD Narvaez D. de auteur aut IRD Rondeau B. auteur aut IRD text journalArticle eng text/pdf reformatted digital access Oxygen isotopic compositions of historical emerald artifacts from the Gallo-Roman period to the 18th century indicate that during historical times, artisans worked emeralds originating from deposits supposedly discovered in the 20th century. In antiquity, Pakistani and Egyptian emeralds were traded by way of the Silk Route. Together with Austrian stones, they were the only source of gem-quality emeralds. Immediately after the discovery of the Colombian mines by Spaniards in the 16th century, a new trade route was established, first via Spain to Europe and India and then directly via the Philippines to India. Since then, Colombian emeralds have dominated the emerald trade, and most of the high-quality emeralds cut in the 18th century in India originated from Colombia. (Résumé d'auteur) specialized MINERAL GITOLOGIE ANALYSE ISOTOPIQUE COMMERCE HISTOIRE EXPLOITATION DES RESSOURCES NATURELLES EMERAUDE 064GEOCHI 287 5453 631-633 2000 0036-8075 https://www.documentation.ird.fr/hor/fdi:010020866 10.1126/science.287.5453.631 0036-8075 [F B010020866] https://www.documentation.ird.fr/hor/fdi:010020866 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_53-54/010020866.pdf IRD - Base Horizon / Pleins textes 2000-03-27 2018-06-19 fdi:010020866 fre