Crown Chakra Jewelry
The gems at your Kruin chakra are:
Rainbow Obsidian for your connection with the rainbow bridge
Larimar for your (h) memories and connection with Atlantis and the dolphin consciousness
Celestien for receiving innovative insights and connection with the world of angels
Moldavite for your energetic connection between heaven and earth
Look for more extensive workings and collection per gemstone type in the healing stones ABC.