1) Suni Ma Qing

Namely, Su Niqing, Su Niqing, Ma Su Li Qing, etc. The source of its name is the transliteration of Persian "Suleiman". The origin of this cobalt material is Kwamsa village in Mount Posca. The villagers thought that a man named Suleiman discovered this cobalt material, so he named it. Another way of saying this is that Suni Ma Qing should be Li Qing, Ma Su, which is the transliteration of English smalt, which means a kind of blue glass. This kind of material belongs to cobalt material with low manganese and high iron, so the thick green belt of blue and white is rusty, commonly known as "tin light". Some blue and white flowers in the Yuan Dynasty and the green materials used in Yongle and Xuande kilns in the Ming Dynasty are all of this kind, and they are all produced in ancient Persia or present-day Syria.

(2) Ping Dengqing

Also known as Bitongqing, it is produced in Leping, Jiangxi. In the late "blank period" of Ming Dynasty, Chenghua, Hongzhi and Zhengde used it early. This material is elegant, bright and stable, which makes Chenghua blue-and-white porcelain famous for a while.

(3) Shi Ziqing

Also known as Shiqing, it is produced in Gao 'an, Yifeng and Shanggao areas in Jiangxi. When this material is used alone, the hair color of blue and white is gray or even black. This material was widely used in the second generation of Ming and Qing kilns, while the official kilns were used for blending and rejuvenation.

(4) Younger

There are many sayings that are produced in the western regions, Xinjiang, Yunnan and so on. The color of this material is dark purple, but if it is used alone, it will not be collected, so it is often mixed with Shi Ziqing. This material was often used from Jiajing to Wanli in Ming Dynasty. Among them, cyan: Shi Ziqing with 10% is added, which is used for mixing water (filling color), and the hair color is blue and bright; Zhongqing: 40% mixed with Shi Ziqing, used for coloring (sketching), with clear brushwork.

(5) Zhejiang materials

Also known as Zheqing, it is produced in Shaoxing and Jinhua, Zhejiang. Among the domestic materials, Zhejiang is the best, and its hair color is green. From the mid-Wanli period of the Ming Dynasty to the Qing Dynasty, Jingdezhen official kiln blue and white wares all used this material.

(6) celebrity therapy

Produced in Xuanwei, Huize, Yiliang and other counties in Yunnan, among which Xuanwei is the best. This material has a bright and pure hair color. Kangxi blue and white used this material.

Most of the above domestic cobalt materials belong to high manganese.

(7) Chemical green materials

That is, a green material prepared from chemical cobalt oxide. The hair color is purple-blue, pure and rich, but it is frivolous and lacks adhesion, and the price is low. Blue and white porcelain made of this material lacks the aesthetic feeling of natural green materials.