Layer
Name
Pigment Bordezac - polished slice #3
Physical characteristics
Type of layer
compact
Thickness
7.0  $\pm$ 0.5  $mm$
Mass
15.05 $g$
Texture
compact fine grained
Type of porosity
without pores
Formation mode
polishing of one face of a raw piece
Comments
embedded in resin before polishing
Number
5
Arrangement
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains embeded in a ferric matrix (hematite), mostly in cracks, sometimes isolated 0.05 assumed mass fraction = cross section fraction. Impurity abundances not determined
tabular muscovite grains embeded in a ferric matrix (hematite) 0.04 < 5%. Assumed mass fraction = cross section fraction
Xenotime-(Y) grains embeded in a ferric matrix (hematite), mostly in cracks 0.01 <1%. Assumed mass fraction = cross section fraction
Baryte grains embeded in a ferric matrix (hematite), mostly in cracks, sometimes isolated < 1%. not detected with DRX
Hematite ferric matrix of hematite containing muscovite, quartz, xenotime and baryte grains) > 50%