Nanhong belongs to agate, which was called "red jade" in ancient times. It is a unique variety in China, with delicate and oily texture. Due to the scarcity of production, the price of old south red agate has risen sharply. South red agate was once used as medicine by the ancients to nourish the heart and replenish blood. South red agate, Hetian jade and jadeite have formed a tripartite confrontation.
Nanhong is an agate and a jade. Compared with ordinary agate, Nanhong has natural red and rubber texture, which belongs to the top grade of agate, so it is much more expensive than ordinary agate. Nanhong is the cryptocrystalline texture of silica, mainly produced in Baoshan, Yunnan, Liangshan, Gansu and Qinghai.
Nanhong is not only agate, but also a kind of jade, belonging to the most precious kind of agate, reaching the level of jade, and meeting the jade standard in terms of color, moisture, transparency, hardness and specific gravity. Known as South Red Agate in ancient times and Chiyu in ancient times, it is a rare jade species unique to China.
Nanhong is jade. Nanhong was a kind of agate earlier, and now it is listed as a precious jade variety, which has reached the jade standard in color, transparency and hardness. The texture is moist and delicate, and Baoshan produces the highest jade. According to the color, it is divided into persimmon red, brocade red, rose red, persimmon yellow and red and white materials.
If the glass variety of jadeite, Wang Lu and Hetian jade are the best jade, then the "Nanhong" in agate is the "brother" jade that keeps pace with the above two kinds of jade. The hardness of Nanhong is similar to that of white jade and jadeite, and the Mohs hardness is between 5 and 7. Suitable for carving.