1, tourmaline is not jade. Emerald belongs to jade, which is a fibrous aggregate composed of pyroxene minerals, while tourmaline belongs to tourmaline, which is a crystal of borosilicate. The luster of jadeite is generally oily, while tourmaline is glassy, both of which are transparent or translucent. The hardness of jadeite is lower than tourmaline, but its value is higher than tourmaline.

2. Tourmaline is the handicraft name of Tourmaline, and Tourmaline is a kind of jewelry of Tourmaline family. It is a borosilicate crystal, which contains chemical elements such as aluminum, iron, magnesium, sodium, lithium and potassium, and presents various colors.

The English name of tourmaline comes from the ancient Sinhalese word Turmali, which means "mixed gem". The composition and color of tourmaline are very complicated. The international jewelry industry basically divides tourmaline into commercial varieties according to color. The brighter the color, the higher the value. Pay attention to color, transparency and purity when purchasing.