Layer
Name
Pigment Roussillon - polished slice #1
Physical characteristics
Type of layer
compact raw
Thickness
6.0  $\pm$ 0.5  $mm$
Mass
12.05 $g$
Texture
compact fine grained
Type of porosity
porous
Formation mode
polishing of one face of a raw piece
Comments
embedded in resin before polishing
Number
2
Arrangement
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains quartz grains embeded in an argilo-ferric matrix (kaolinite and hematite or locally goethite) 0.6 mass fraction unknown but assumed mass fraction = areal fraction in cross section ~60%
kaolinite clay with hematite and goethite clay-ferric matrix (kaolinite and hematite or locally goethite) is the cement between quartz grains 0.4 mass fraction unknown but assumed mass fraction = areal fraction in cross section ~40%. Small impurity of P, Ti, K, Na, Ca, Mg, Mn (0.92% in oxides)