This is a natural Burmese Amber. 100% Authentic amber. Not synthetic. Patter is all formed by great nature. Burmese amber, this was formed by incorporating calcium carbonate minerals (calcite), giving it a marble-like pattern. Very rare Root Amber. Pendant height (Approx): 2 7/8 inches or 7.3 cm Pendant width (Approx):: 2 1/8 inches or 5.5cm About 2cm Thickness Item Weight (Approx): 41.12g including necklace. Purchase comes with a storage box. Purchase comes with a Certification to certify this gem in Chinese. ?????? ??? 1. The effect of eliminating negative energy: The most obvious point of Root Amber effect is that it can continuously help people to expel negative energy from the body. Its positive energy magnetic field will have a positive impact on people who are unlucky or mentally ill. This is why many people use amber or beeswax to create bracelets or accessories. The effect of Root Amber is especially for people who often sit in front of computer desks. Its anti-radiation effect can also help people keep themselves. good health and protect the dual purpose. 2. In addition to the effect of Root Amber, the formation of root amber is relatively difficult, which also makes formation relatively slow, so the quantity of root amber on the market is very rare. , If you are valuable, if you buy a relatively better piece of amber now, the collection value in the future will be much higher than the collection value of gold.