Hema Valley, as its name implies, is called Hema Valley because rocks containing jade collapse and are scattered in the riverbed due to crustal changes. After hundreds of millions of years of oxidation erosion and river erosion, its edges and corners have been exhausted, such as pebbles outside and nephrite inside. Hemo jade is called a rare treasure because of its rare quantity, high quality and bright color, and it is also the most valuable jade for collection at present. The main component of Heheyu is tremolite, with the content of 90-98%, hardness of 6.36-6.46, density of 2.9 1-3. 1, slightly transparent, glassy to oily luster, mostly emerald green. There are four common colors of river black jade: yellow, white, jade, sapphire and black jade. Others have some excessive colors. Hemo jade has the best color and the highest value. The "Millennium Pu" recorded in ancient books is Hemo jade, which shows that the quality of each kind of jade is very high.
Jade, also known as jadeite, jadeite and Burmese jade, is a kind of jade. The correct definition of jadeite is fibrous aggregate composed of pyroxene minerals, mainly jadeite minerals. But jade is not equal to jade. Jadeite is a kind of stone polycrystalline aggregate that reaches the jade level under geological action. It is mainly composed of jadeite or jadeite, sodium (sodalite) and sodalite (omphacite), and may contain amphibole, feldspar, chromite and limonite. In ancient times, jade was a bird that lived in the south. Its coat color is very beautiful, usually blue, green, red and brown. Generally, the male of this bird is red and called "Fei", and the female is green and called "Cui".