Shoushan Stone was a Shinese Treasure, one of the "Four Seal Stones" in Shinese tradition.Among gemstones and colored stones, Shoushan Stone belonged to the rock sub-category of the color stone category. Its species and stone names were very complicated. There were about one hundred varieties of it. According to traditional customs, Shoushan Stone could be generally divided into three categories "field pit", "water pit", and "mountain pit".Similarly, Shoushan Stone came in many colors. There was a place called "Shoushan Village" with a trickling Shoushan Stream. At the bottom of the paddy field of Shoushan Stream, there was Shoushan Stone, which was the "King of Stones". It was produced at the bottom of the field, mostly in yellow, so it was called Field Pit Stone or Field Yellow.Classified by color, Field Pit Stone could be generally divided into Field Yellow, Field Red, Field White, Field Gray, Field Black, and Field Motley.
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