During the club meeting of Sept. 17, 2025, I will give a lecture on "Gem or Scam?" for Geode Geological Society in Zwijndrecht (NL). In…
During the show on October 4 and 5, at the booth i01 of Stapel van Stenen (Stack of Stones) and Henk Rijneveld FGA (gemologist) you…
During a meeting of the Belgian geological society Geolithos on Oct. 11, 2025, I will give a lecture on "Gem or Scam?" at Evenementenhal Den…
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