
Point of three blue gemstone samples drapping at L a*b* 3D coordinates
Figures of the Article
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Sapphire samples (No. S1-S14)
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Apatite samples (No. A1-A12)
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Cordierite samples (No. C1-C12)
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CIE 1931 chromaticity diagram of three blue gemstone samples
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Point of three blue gemstone samples drapping at L a*b* 3D coordinates
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L a*b* projection points projecting on each of the three planes
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Point of three blue gemstone samples drapping at L Chab* 3D coordinates
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L Chab* projection points projecting on each of the three planes
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