| Flake graphite is opaque, flexible and sectile, and exhibits perfect basal cleavage. |
| The central part of the room was raised and covered in marble slabs of various colours in opus sectile technique. |
| The opus sectile techniqueis rarely applied. |
| Alternative of the opus sectile realized with the tesserae geometrical ones with very hard materials like porphyry. |
| The Tablinum in the house of the vestals and the temple of Jupiter on the Capitol were paved with sectile mosaic. |
| It is sectile, slightly flexible, with no apparent cleavage but with a splintery fracture. |
