Dr. Tom Campbell
Gem Crystal Pegmatite Pocket Formation and Survival
Biography and Lecture Synopsis
Edward Boehm
An Inside View of Gem Crystal Production at Major Tourmaline mines, and the Ouro Preto Topaz Mine
Biography and Lecture Synopsis
Jeff Scovil
Travels in Brazil
Biography and Lecture Synopsis
Paula Crevoshay
Illuminations: Gemstones as Art
Biography and Lecture Synopsis
Richard Freeman
Jonas Mine Tourmaline Discovery
Biography and Lecture Synopsis Coming Soon
Monte Zajicek
Hunting Colombian Emeralds
Biography and Lecture Synopsis
Brian Cook
Bahia Rutilated Quartz and Brazil Paraiba Tourmaline
Biography and Lecture Synopsis
Thomas Nagin
Gem Hunting in Brazil, Bolivia, and Colombia
Biography and Lecture Synopsis
John Saul
The Origin of Gem Deposits in Supercontinent Cycles
Biography and Lecture Synopsis