Maiyan stone (named because of the stone like wheat rice balls) origin more, Shandong, Inner Mongolia, Liaoning Fuxin and other parts of the region. Different reserves in different places, the quality varies greatly. Materia Medica recorded wheat stone is the "Chinese wheat stone" found the earliest mining the earliest, which Tongliao City, Inner Mongolia Naiman flag quality for the best, the only title for the "Chinese wheat stone" wheat stone, identification methods are, look at the pattern of Chinese wheat stone, white dots for the wheat grains and black dots as well as yellow for the trace elements, the color of the Chinese wheat stone has a greenish gray or crane yellow, identify the real and fake Chinese wheat stone method 1: the color of the greenish gray Or crane yellow, if the other colors are not Chinese Maifanshi Identify fake Chinese Maifanshi method 2: you can test the PH value or trace elements Identify fake Chinese Maifanshi method 3: a more earthy way to taste the taste, with Chinese Maifanshi water cup soaked in water for 30 minutes to drink, especially soft, there is a kind of sweet taste, the content of minerals inside is basically comparable to the "Nongfushanshuanshen"!