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金属矿物颜色指数是近代矿相学中定量测定的新进展。本文阐述了颜色指数的视觉反射率、色调、饱和度、色度坐标在定性观察方面的应用。视觉反射率比白光或绿光下测定的反射率更接近人目本身感觉的反射率。色度坐标可用于计算反射多色性的相对色度差以衡量反射多色性的显著程度。颜色指数用于编排金属矿物鉴定表,使鉴定表系统化、数字化且简明实用。颜色指数在金属矿物的鉴定工作方面具有指导作用。
Metal mineral color index is a new advance in quantitative determination of mineralogy in modern times. This article describes the application of the visual index of color index, hue, saturation and chromaticity coordinates in qualitative observation. The reflectivity of the visual reflectivity is closer to the reflectivity of the human head itself than the white or green reflectivity. Chromaticity coordinates can be used to calculate the relative chromaticity difference of the reflected polychromaticity to measure the significance of the reflected polychromaticity. The color index is used to arrange metal mineral identification tables, making the identification tables systematic, digital and concise and practical. The color index has a guiding role in the identification of metal minerals.