Layer
Name
Layer #1
Type of layer
compact
Thickness
190.0   5.0  
Texture
compact glassy
Type of porosity
porous
Formation mode
mechanical slabing
Temperature
60.0   5.0  
Comments
The rough sample (without any preliminary preparation except cutting) was first placed in an epoxy cylinder, 2.5 cm in diameter. The epoxy was hardened on a hotplate at 60 °C to avoid sample dehydration. The cylinder was polished on one side and then cut parallel to the polished face to obtain a ∼500 mm-thick disk. The second side was polished down to the desired thickness. Finally, the sample was removed by breaking the thin epoxy disk.
Number
1
Arrangement
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
opal-CT 1543d 1.0