Topics
Scientific papers on topics from the EPI Institute.
Topics
- "Chloromelanite"
- "Smaragdite"
- »Chrysanthemum Stone« & »Flower Porphyry«
- Amazonite - a name in transition
- Corals
- Diamonds - HTHP Treatment
- Feldspars: Like the Sun and the Moon
- Fire opal
- Fissure fillings in gemstones
- Prasem
- Radioactive gems
- Shungite Coal
- Turquoise Treatments
- What is »Aventurine« ?
- What is »JADE« ?