Phenomenal (cats-eye effect, star effect, play-of-color, color-change) and Rare Gems
November 24, 2023
INSTRUCTOR: Dr LORE KIEFERT
This session will describe the mechanisms behind the above-mentioned effects in more detail and list the gems which have such an effect. Differences between certain artificially created effects and their natural counterparts wil be shown.
Rare gems show up unexpectedly and create confusion when trying to identify them. In this webinar, Systematic methods of how these can be identified are given.