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Vicenzaoro January 2020. Gem Talks, Day 1: Quartz (Guy Lalous)
DescriptionTHE GREAT FAMILY OF THE QUARTZ: A SINGLE NAME, MANY POSSIBILITIES Speaker: Guy Lalous - President FEEG - Federation of European Education in GemmologyMore
THE GREAT FAMILY OF THE QUARTZ: A SINGLE NAME, MANY POSSIBILITIES
Speaker: Guy Lalous - President FEEG - Federation of European Education in Gemmology
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