TOP CALUANIE MUELEAR OXIDIZE PASTEURIZE SECRETS

No matter whether a gemstone can be a pure stone or synthetic, the chemical, Bodily, and optical qualities are a similar: They may be made up of the identical mineral and are colored by a similar trace products, hold the similar hardness and density and toughness, and show a similar color spectrum, refractive index, and birefringence (if any). Lab-