The sensory evaluation of jadeite can be summarized as "seeing, touching, weighing and listening".

Look: look at the characteristics, the structure, the color and the flaws-the characteristic of jadeite is "emerald" (commonly known as flying wing), that is, the star-shaped flash produced by the dissociation of granular, flaky or fibrous spots inside it; The structure is characterized by the interweaving of variegated crystals, and the crystal thickness is an evaluation of jadeite geology. With the help of light or natural light, check whether there are impurities, cracks, etc. In the jade entity, combined with other instructions!

Touch: Emerald can transfer heat and dissipate heat quickly. Stick it on your face or put it on the back of your hand and feel cold for a short time. After polishing, the surface finish is high, and the hand mold feels obviously smooth.

Yunnan: The density of jadeite is 3.34 grams per cubic centimeter, which is higher than nephrite, dushan jade, Xiuyu, Australian jade, Ma Laiyu (dyed quartzite), jadeite and grape jade. Experienced people can preliminarily judge whether a jade material or jade piece is jadeite by weighing.

Listen: Listen carefully to the sound of collision between finished products, and you can roughly judge whether it is jadeite or not, and what kind of jadeite it is (whether it has been pickled or treated). Natural jadeite jade pieces, especially those with good texture, will make a crisp and pleasant "steel sound" when struck. Listen, you must have a comparative hearing, or have some experience as the basis, in order to judge the quality of jade in general.

This is a relatively simple identification of jadeite!