Layer
Name
Painted pigment Bordezac (grains inf. 160µm)
Order
2
Physical characteristics
Type of layer
compact
Texture
cemented granular
Type of porosity
porous
Comments
thichness is not measured but < 0.5mm
Formation mode
manual deposition
Temperature
295.0  $K$
Comments
Some powder is mixed with a few drops of water to obtain a homogeneous painting matter with a smoothness suitable for application by brush on a porous limestone substrate. Several layers of painting matter is applied to get the desired paint thickness. The paint is then dried to remove the water.
Number
5
Arrangement
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains embeded in a ferric matrix (hematite) 0.05 Assumed mass fraction = cross section fraction in raw material
Muscovite grains embeded in a ferric matrix (hematite) 0.04 < 5%. Assumed mass fraction = cross section fraction in raw material
Xenotime-(Y) grains embeded in a ferric matrix (hematite) 0.01 <1%. Assumed mass fraction = cross section fraction in raw material
Baryte grains embeded in a ferric matrix (hematite) < 1%. not detected with DRX
Hematite ferric matrix of hematite) > 50%