Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture and luster. They may exhibit pleochroism or double refraction. They may have luminescence and a distinctive absorption spectrum. Material or flaws within a stone may be present as inclusions.
Like other forms of alternative therapy, crystals work by channelizing your energy levels, thereby, focus on healing your body from the inside. Crystals also carry the power to induce a placebo effect in the body, which is scientifically proven to help medical treatment