Gem, a rare gem, is generally made into various accessories, which is a symbol of high-end extravagance. How many people are crazy about it, owning a rare gem is the capital to show off. There are also many famous painters who grind precious stones into painting pigments and use them to create many the world famous paintings, such as ancient paintings in the Forbidden City, Dunhuang murals and western oil paintings. After the washing of time, some of them even suffered from the trauma of war. They are still natural and bright, and their colors will not fade for thousands of years. The characters are lifelike and breathtaking. National famous painting? Thousands of miles away? The mountains are endless and magnificent. Although they still emit bright colors after thousands of years, this is because a lot of precious gem pigments are used. However, not all gems can be used as pigments in painting, but in the eyes of painters. Gems with good color and texture may be regarded as defective in the eyes of jewelers because of insufficient purity, and vice versa.

Mineral pigments are formed in a certain special geological environment and have stable physical and chemical properties, so they have the characteristics of bright colors and enduring. Most painters like gems with bright colors and low hardness, while precious gems with high hardness such as diamonds, opals and emeralds cannot be used for painting. Mineral pigment is a color extracted from ore, with dark color, pure color and crystal structure. After crushing, grinding, rinsing and other processing, fine powder and other processes can be made into painting pigments.

There are many minerals commonly used in painting. (1) Stone green, also known as malachite, has a unique green color, which is so beautiful because it resembles the spots on peacock feathers.

(2) azurite, also known as azurite, is an alkaline carbonate mineral closely associated with malachite. Now it is also widely used to make beads and brooches.

(3) Celestite, with charming color, is found only in a few places on the earth. During the Renaissance, it was priceless and the price was as high as gold.

There are many minerals, such as red coral, cinnabar and realgar. Can be refined and put into painting. The fundamental reason is that painters and gemologists have different understandings and ways of using gems for their own needs.