Fortieth Anniversary of the Belmont Mine
Marcelo Ribeiro offers an update on mining and cutting activities at the Belmont emerald mine in Brazil.
Colombian Emerald Industry: The New Generation
Luis Gabriel Angarita and Edwin Molina share their experiences and perspective on the Colombian emerald industry.
Outlook on Opals from Mexico and Australia
Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.
Supply Chain Transparency and Beneficiation
Jean Claude Michelou shares his perspective on supply chain transparency and beneficiation in source countries.
Turquoise from Western Arkansas
A report on turquoise from the only known U.S. deposit outside of the Southwest.
Ponderosa Sunstone Update
John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.
Interview with a Kenyan Miner and Dealer
Miriam Kamau relates how she became a prominent dealer and miner.
Update on Russian Demantoid Production
Alexey Burlakov shares insights on the current production of Russian demantoid and emeralds.
Update on the Green Dragon Demantoid Mine in Namibia
Stephan Reif explains the mine-to-market approach at the largest continuously operating demantoid deposit.
Tucson 2018 Overview
An overview of the 2018 Tucson gem shows.