Where did China's traditional "Four Yin Zhangshi" come from?

1 Shoushan Stone, a Chinese treasure, is one of the traditional "Four Yin Zhangshi" in China. It is distributed in the "Golden Triangle" zone at the junction of Jinan District, Lianjiang County and Luoyuan County in the northern suburb of Fuzhou. If the vein strikes, it can be divided into three systems: Gaoshan, Qishan and Yueyang. Because Shoushan mining area was mined earlier, the old saying "Tiankeng, Shuikeng and Shankeng" refers to the ore mined in the bottom of the field, water flow and karst caves in this mining area. After 1500 years of excavation, there are hundreds of varieties of Shoushan stone.

Qingtian Stone in Zhejiang: Qingtian Stone is produced in qingtian county, Zhejiang. Qingtian stone is different from Shoushan stone. Qingtian stone is dominated by cyan, while Shoushan stone is dominated by red, yellow and white. Qingtian's famous products include light jelly, fish brain jelly, soy sauce jelly, fengmenqing, mint jelly, Mo Tian, Tian Bai and so on.

Zhejiang Changhua Fossil: Changhua Town, Lin 'an, Zhejiang Province. Often fossils have oily luster, slightly transparent, yellow-black, extremely translucent, and very few are transparent. There are many varieties, most of which are calm in color, tough in texture and have obvious flaky fine white spots. According to color, there are white jelly (transparent or fish brain jelly), Tian Huang jelly, peach jelly, ox horn jelly, sand jelly and lotus root powder jelly (mainly), all of which are excellent varieties. Pure color without impurities, rare and precious, dense texture, tough knife, less sand impurities (astringent, not derogatory), of which bloodstone is the best.

Bahrain Stone in Inner Mongolia: Bahrain Stone, produced in Bahrain Right Banner, Chifeng City, Inner Mongolia Autonomous Region, China, with the scientific name pyrophyllite. The classification and naming of Bahrain stone basically adopts the traditional names of Yin Zhangshi, but there are also many names of its own. Bahrain stone can be roughly divided into bloodstone, Yellowstone, frozen stone and colored stone.