Rare Blue Amber Natural Slab Cut Pendant mounted in 925 solid silver. The term Blue Amber comes from the fact that when the amber is subjected to Ultra Violet Light from strong sunlight it will turn blue. This amber is 100% Genuine and is around 15 - 25 Million years old and is the resin from a Hymenaea protera tree. This section is around 47mm Diameter . It has been fitted with a 925 silver suspention loop and a great quality 60cm long chain.