The milk source color stone is produced in Yaoshan, Ruyuan Yao Autonomous County, Shaoguan City, Guangdong Province (there is no such stone species found in any area), so some people also call it “Yuyuan Yaoshan Color Stone”. This stone is gradually famous in the province and abroad for its rich and colorful colors. According to the preliminary analysis of relevant geological experts, the milk source color stone is an extremely rare geological rock classification group, which contains silicon, calcium, copper, iron, tin, antimony and other elements, and its hardness is 4 to 7 degrees.