Fe-Ti charge transfers: A comprehensive review and its applications to minerals and gems
Maxence Vigier, Helen Evans, George R. Rossman, Stéphane Jobic, Emmanuel Fritsch
Gemological Characteristics of New Transparent Brown Sapphire
A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,
Gems in Greece: Geology, mineralogy and crystallizing environment
In the accretionary Hellenides Orogen, gems occur in various rock types of mainly four tectonometamo