Historic Emeralds and their Geographic Origin: A Retrospective Study
Marie-Laure Cassius-Duranton, Vincent Pardieu, Stefanos Karampelas
Novel cultured pearls with ceramic nucleus and possible cause of their strong luster
Cultured pearls with a ceramic nucleus (bead) represent a new type of saltwater cultured pearls that
History of Garnet Mining and Cutting in the Austro-Hungarian Monarchy
Bohemian garnets, i.e., chromium-bearing pyropes, are found in several jewellery pieces from the Mig