Could it be due to this? https://en.m.wikipedia.org/wiki/YInMn_Blue
Note the "unusually high NIR reflectance".
Could it be due to this? https://en.m.wikipedia.org/wiki/YInMn_Blue
Note the "unusually high NIR reflectance".
Could it be due to this? https://en.m.wikipedia.org/wiki/YInMn_Blue
Note the "unusually high NIR reflectance".
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