La collection gemmologique et minéralogique de la Swiss Gemmological Data Foundation (SGDF): un outil au service de la science

he Swiss Gemmological Data Foundation (SGDF), based in Geneva, is an independent scientific institution dedicated to the preservation and promotion of a unique collection of gemmological, mineralogical, and biogenic samples. Founded in 2021 by Franck Notari and his colleagues, the SGDF houses nearly 90,000 referenced specimens, from more than 20,000 entries, collected since the 1970s from around the world. This collection, systematically classified according to the Nickel-Strunz nomenclature, covers approximately 500 mineral species and includes natural, synthetic, and treated gems, as well as imitations and biogenic materials.