2. The colors of jadeite are green, red, purple, black, yellow, white, cyan and their mixed colors. Green is called Cui, containing chromium, red is called Fei, containing iron oxide, and purple is called purple. Bright and heavy colors are especially expensive.

3. Jadeite is a kind of pyroxene mineral, and its main component is Naal [Si2O3], which is called jadeite by French mineralogist Demoures, nephrite by other jades and pyroxene by some scholars. The hardness of jadeite jade is 6.5-7. 1, and the specific gravity is 3.3, which is mainly produced in Myanmar.