A few video’s are added here, showing my mineral collection. Watch my video on minerals from South Limburg Slags, Brunssum (Hendrik) and Kerkrade (Willem-Sophia), Port of Rotterdam or Krimpenerwaard/Lopikerwaard. Or on Lapis Philosophorum, by dr. K. Jung…

Hendrik and Willem-Sophia

Watch this video on minerals from Krimpenerwaard and Lopikerwaard Netherlands. The suspected origin is also mentioned.

Watch this video on minerals from Rotterdam:

Watch this video from Karl Jung for the real Lapis Philosophorum, connected to the manuscript.