Layer
- Name
- Calcite hydrothermal concretion powder (inf. 25 µm)
- Type of layer
- granular
- Thickness
- 3.5 ± 0.1 mm
- Mass
- 0.3 ± 0.001 g
- Texture
- compact fine grained
- Type of porosity
- open pores
- Porosity
- 0.795 ± 0.003
- Density
- 0.555 ± 0.005 g.cm−3
- Formation mode
- manual deposition
- Comments
- raw piece crushed in an agate mortar and sieved with 25 µm mesh