Moonstone can be cut with a knife. According to the relevant public information on the inquiry website, the hardness of moonstone is 6 to 6.5, and the hardness of moonstone is under the knife, so it can be cut with a knife. Moonstone has luminous effect, and it will emit white light or blue light at a certain angle. Moonstone is a crystal lattice twin layer, and sometimes millipede-like inclusions can be observed in moonstone with a magnifying glass.