Layer
Name
Painted pigment Fontenaille (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
2
Arrangement
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains grains coated by ferruginous clays srelative abundance not yet determined, but much smaller than 60 vol% of the raw powder
brown kaolinite clay with goethite ferruginous clays coating or cementing quartz grains relative abundance not determined, but larger than 40 vol% of the raw powder