Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_601), powder with grains < 160 µm, d=1.24 g/cm3 Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_601), powder with grains < 160 µm, d=1.33 g/cm3

Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_101), block #1, raw face #1 Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_301), block #2, sawn face #1 Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_301), block #2, raw face #2

Spectrum Vis-NIR reflectance spectrum of Pierrerue pigment (PIG_0176_A_901, grains < 160 µm) painted on limestone block Spectrum Vis-NIR reflectance spectrum of limestone block