Descriptor : Pores of vertical intervallar structures
Descriptor type : categorical
Vertical intervallar structures: Longitudinal and often radial structures inside the intervallum (septa, taeniae...).
Intervallum: Space enclosed between the walls.
- Aporous
-
Aporous: No pore.
- Circular pores
-
- Tetragonal pores
-
- isn't included in the term
-