And what about the third situation? First of all, what gemstones need to be discolored by irradiation, and what is the principle of irradiation discoloration? In modern scientific research, the color of gemstones is the result of selective absorption of natural light. Besides chemical elements, there are chromogenic mechanisms such as color center chromogenesis, charge transfer chromogenesis and energy band chromogenesis. Among them, radiation is related to the coloring of color center, which means that when the crystal is affected by high-energy radiation (such as X-ray and γ-ray) in the growth process, unpaired electrons that produce color can appear in the crystal defects formed by non-excessive element ions or lack of electrons, which is the color center. For example, purple fluorite, smoky crystal, amethyst and blue topaz are all color centers.
Will there be any radiation residue in these colored-heart gems? Will wearing it for a long time lead to the harm mentioned by the media? What I want to say here is whether all radiation is harmful. In the scientific definition, radiation refers to the transfer of energy in the form of waves or subatomic particle motion. It exists widely in our life. In fact, any object will emit radiation as long as its temperature is higher than absolute zero (-273. 15). Radiation is divided into ionizing radiation and non-ionizing radiation.