Layer
Name
Pigment Fontenaille - sawn raw piece
Physical characteristics
Type of layer
compact
Thickness
5.0  $\pm$ 0.5  $mm$
Texture
compact fine grained
Type of porosity
open pores
Comments
irregular thickness
Formation mode
raw
Comments
sawn on one side
Number
2
Arrangement
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains homogeneous distribution of grains cemented by ferruginous clays mass fraction unknown but volume fraction is ~60% (areal fraction in sections)
brown kaolinite clay with goethite ferruginous clays is the cement filling a large fraction of the pore space between quartz grains mass fraction unknown but volume fraction is ~40% (areal fraction in sections)