Mineral Explorers S01 E03 Brazil - The Estrada Real

This episode finds Thomas traveling the famed Estrada Real, or "Royal Road," exploring Brazil's rich diamond and gold history. En route he also discovers the odd formations at Chapada Diamantina National Park and the highly-coveted imperial topaz, found exclusively in Brazil. Along the way, we meet the "Laser Cowboys" who dig for long, beautiful laser quartz crystals, and one of Brazil's best-known mineral collectors who invites Thomas to view his extensive, private collection.