Jade is believed to help a person, but in contact with it . Jade feels cool to strengthen and purify the mind , calm the mind and induce a meditative state . It is also considered a frequent cause jade stone processing , adds more beauty luster.According, Chinese have a saying , science, said, " Jade cool, because it is from a clear mountain stream nature ." : "Jade is a kind of cool feeling , because it is a non -conductive Many Chinese people believe that jade stone , eventually becoming an integral part of it . Its owner's life. Yu said that change color depending on its own aura. Or depressed, he or she may be a darker shade of jade . If we 're lucky, the stone may be a lighter color . It is also considered a person of cracks or broken pieces of jade , protection evil. Product Details - Shape / Model : A cargo Jade Dragon - Material / Gem : light green jade - Standard international shipping ( 10 days -18 days delivery ) - Level / Type : 100 / / A class - Origin: China - Size: about 40 * 21 * 7 mm - Refractive index: 1.66 - 1.67 - Specific gravity: 3.33 - 3.34 - Colors and varieties: green, cold varieties - Weight: 36.8 g - Luster: vitreous luster - Surface texture: Excellent Transport policy , which is the standard international shipping 10-18 days We provide delivery tracking number for you , so you can keep track of all information . Registered mail , all of our online inquiry service packages will shipped by registered letter with , Thank you for reading , if you have any questions , please contact me. Registered Mail ( free online tracking number ) All our packages will be shipped with online tracking number, registered letter , I'm sorry , we do not send packages unregistered . 100% Satisfaction Guaranteed If you are not completely satisfied with our products , please email us immediately and return them after you accept full refund within 7 days of the date . No restocking fee will be charged .