One: Tap water generally has bleaching powder. Put the medical stone into tap water for several hours, the water quality will be much clearer, and the tap water is a little white, which has been absorbed by the medical stone, not only the water quality is clear, but also the taste is sweet. Similar to natural mineral water.
Two: the same test, drop a few drops of paint or ink and other colored substances in the water, and see if the water quality becomes clear after a few hours to see if the color in the colored water is sucked away. If there is nothing to reflect, then this medical stone is generally fake.
3. Take out the mobile phone, turn on the camera function of the mobile phone, aim at the bought medical stone particles, and enlarge the photographed medical stone. You can clearly see that the white material on the surface of the real medical stone is irregular, the white material is translucent, and there are a lot of pore structures and tourmaline on the surface of the medical stone.