Layer
Name
Pigment Beauregard - polished slice
Physical characteristics
Type of layer
compact
Thickness
6.0  $\pm$ 0.2  $mm$
Mass
12.05 $g$
Texture
compact fine grained
Type of porosity
porous
Formation mode
polishing of both faces of a raw piece
Comments
embedded in resin before polishing
Number
4
Arrangement
heterogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Hematite-goethite hematite and minor amount of goethite both in cement and as pseudomorphosis of bioclasts (crinoids and others) 0.917 91.7% of the crystalline phases
Quartz grains embeded in a ferric matrix (hematite + some goethite), isolated 0.05 < 5%. Assumed mass fraction = cross section fraction
Fluorite grains embeded in a ferric matrix (hematite + some goethite), isolated 0.05 < 5%. Assumed mass fraction = cross section fraction
Baryte grains embeded in a ferric matrix (hematite + some goethite), isolated 0.05 < 5%. Assumed mass fraction = cross section fraction