2/$20, Genuine Blue Green Chalcedony, Natural Gemstone Adjustable Cord Necklace

Genuine Blue Green Chalcedony, Natural Gemstone Adjustable Cord Necklace The blue variety of chalcedony occurs only when it does not contain many color-changing impurities. This stone is perfect for carving, cutting, crafting, and tumbling, and its rarity may explain why so many chalcedonies are artificially colored for the market. The most valuable natural specimens of blue Chalcedony bend the light in such a way that they appear to be lit from within. 20 mm blue chalcedony round bead 9 mm green chalcedony round bead The length is about 18", lobster claw clasp + extension chain ***Feel free to contact me to personalize the length, you can measure one of your own necklaces to have an idea of the length you like.