Abstract:
"Green phantom crystal" is the trade name of crystal which contains green chlorite inclusions. Recently, a new type of "green phantom crystal" imitation appeared on the market, and the appearance of the imitation is similar to the natural one. Results of the basic gemmological tests show that the samples have a refractive index of 1.55 (point measurenent), and the relative density is about 2.67. Microscopic magnification observation shows that the samples contain gas-liquid two-phases inclusions, and further researches show that the green inclusions are composed of particles.Infrared spectra show that these green particles are synthetic moissanites. The test results show that it is a new type of imitation of "green phantom crystal" that infuses green synthetic moissanite into natural colourless crystal. Therefore, it is suggested to observe the inclusions carefully when identifying this kind of "green phantom crystal".