Abstract:The color characteristics, chemical composition and spectroscopic characteristics of the yellow-red Huanglong jade samples from Myanmar were studied through Fourier transform infrared spectrum, laser Raman spectrometer, ultraviolet-visible spectroscopy, an X-ray fluorescence spectrometer, electron microprobe analyzer, and an X-Rite SP62 hand-held spectrophotometer. The quantitative relationship between the color and spectral characteristics of Huanglong jade from Myanmar was analyzed. The results show that yellow-red Huanglong jade from Myanmar is mainly composed of SiO2, with small amounts of Fe, Cu, Cr and other transition metal elements, and belongs to the cryptocrystalline quartz jade. Under CIE D65 standard light source and N9 Munsell neutral background, there is a high correlation between the lightness and the hue angle of the Huanglong jade from Myanmar, and the change of iron content has a significant effect on the lightness and hue angle of the Huanglong jade from Myanmar. The first derivatives of the ultraviolet-visible absorption spectra can infer the relative contents of goethite and hematite in the Huanglong jade from Myanmar, and the color of the Huanglong jade from Myanmar changes from yellow to red as the position of the primary wave trough shifts toward the long-wave direction.