Colorimetry Characteristics and Influencing Factors of Sulfur-Rich Lapis Lazuli
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DOI: 10.3390/cryst15121035
Abstract: Lapis lazuli is a valued gemstone that displays a wide spectrum of blue hues, yet the quantitative link between its color and internal sulfur speciation remains unresolved. This study integrates colorimetry with electron probe microanalysis… read more here.
Keywords: blue fancy; characteristics influencing; colorimetry; colorimetry characteristics ... See more keywords