Blue tourmaline: a general term for light blue to dark blue tourmalines. Blue tourmaline is the most valuable color in tourmaline because of its rarity.
Red tourmaline: the general term for pink to red tourmaline; Green tourmaline: Green and yellow tourmalines are the most common among all tourmaline color variants, so their value is not as good as blue and red tourmalines.
Extended data:
Maintenance precautions:
The first trick is to put tourmaline jewelry alone in the jewelry box when you don't wear tourmaline jewelry at ordinary times, so as to avoid the friction and collision between tourmaline jewelry and other jewelry, causing unnecessary losses.
The second measure, tourmaline hardness is 7-8, which is relatively high, but tourmaline itself is brittle and afraid of breaking. Unless it is pure and flawless tourmaline, try not to wear tourmaline gems for strenuous exercise or heavy work, so as not to cause tourmaline gems to break.
Third, it is a good habit to check and repair your jewelry regularly. Go to a professional jewelry store to check your tourmaline jewelry every month. If the gemstone falls off and is scratched, solve it in time.
Fourthly, if tourmaline jewelry is borderless inlaid and micro-inlaid, you should avoid bumping when wearing tourmaline jewelry, because the tourmaline jewelry inlaid in this way is beautiful, but not very strong, so be careful.
Fifth, don't wash with high-temperature water for a long time. If it is too hot, it will change the color of tourmaline.
Baidu encyclopedia-tourmaline