18-03: Lecture ‘Gem or Scam?’ for LVGA Friesland
During the meeting on March 18, 2026, I will give a lecture on “Gem or Scam?” for the Frisian division of the national geological association…
Tag: lecture
11-10: Lecture ‘Gem or Scam?’ for Geolithos
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…
17-9: Lecture ‘Gem or Scam?’ for Geode Zwijndrecht
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…
