 | | Journal (issue) | | from Washington State, USA Copper Minerals in Chalcedony from Indonesia b THE JOURNAL OF GEMMOLOGY...Nephrite Jade from Washingto n State, USA Copper Mine rals in Chalcedon y from Indon esia ARTICLES The...Williams and George R. Rossman Copper Minerals in Chalcedony from Obi Island, Indonesia 512 By Joel Ivey...Galopim de Carvalho Gem Education Consultant, Lisbon, Portugal Al Gilbertson Gemological Institute of America...Claude Bernard University Lyon 1, France Jeffrey E. Post Smithsonian Institution, Washington DC, USA |  | | Journal (issue) | | Blancas: An historic Colombian emerald mine R. Ringsrud and E. Boehm 251 Book review 254 Conference...UK F: +44 (0)20 7404 8843 T: +44 (0)20 7404 3334 E: information@gem-a.com W: www.gem-a.com ©2004 Gemmological...UK T: +44 (0)20 7404 3334 F: +44 (0)20 7404 8843 E: information@gem-a.com W: www.gem-a.com Registered...Deeks, E.A. Jobbins, M.J. O’Donoghue Honorary Fellow: E. Fritsch Honorary Diamond Member: M. Rapaport Honorary...Harris, J.A.W. Hodgkinson, J.I. Koivula, C.M. Ou Yang, E. Stern, I. Thomson, V.P. Watson, C.H. Winter Chief |
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Monte Suímo Mine, Queluz e Belas, Sintra, Lisbon, Portugal