Comment on 600-year-old amethyst 'worthy of a duke' found in medieval castle moat in Poland
WoodScientist@sh.itjust.works 5 weeks agoI’m more impressed that they had the technology to make synthetic amethysts in 15th century Poland.
Comment on 600-year-old amethyst 'worthy of a duke' found in medieval castle moat in Poland
WoodScientist@sh.itjust.works 5 weeks agoI’m more impressed that they had the technology to make synthetic amethysts in 15th century Poland.