Historic Emeralds and their Geographic Origin: A Retrospective Study
Marie-Laure Cassius-Duranton, Vincent Pardieu, Stefanos Karampelas
On the nature of blue rose quartz
Over the past several years, the market for pink-coloured rose quartz has been augmented by variants
Gems in Greece: Geology, mineralogy and crystallizing environment
In the accretionary Hellenides Orogen, gems occur in various rock types of mainly four tectonometamo