Layer
Name
Porous Smectite-rich powder (sublimation residue made of sub-micrometre sized grains)
Physical characteristics
Type of layer
granular
Thickness
12.0  $\pm$ 0.5  $mm$
Texture
other
Type of porosity
particulate
Comments
This porous surface of sub-micrometre sized grains was produced by mixing the grains with water ice particles and sublimating the ice.
Formation mode
fractional sublimation
Number
5
Arrangement
single material
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Smectite The main mineral constituting this matter is either smectite or illite.
Illite The main mineral constituting this matter is either smectite or illite.
Microcline
Quartz
Kaolinite