
Slate
A fine-grained stone that splits naturally into thin layers. Its character is the cleft surface, dark matte color, chipped plate edges, and subtle sheet-like direction.
Common names
- split slate
- roofing slate
- natural slate
Search phrases
- thin layered black stone
- dark split stone
- charcoal stone tile
- roofing slate
Common uses
- Roof shingles
- Entry floors
- Feature walls
- Fireplace hearths
Choosing points
- Best for floors, roofs, walls, and exterior details where thin layered dark stone is useful.
- Cleft slate has beautiful texture but catches dust in ridges.
- Dark slate can show white mineral bloom or cleaning residue.
- It is visually calm, making it useful beside wood, plaster, and blackened metal.
How it ages
- Good slate lasts decades, but poor slate can delaminate in freeze-thaw or wet exterior conditions.
What to avoid
- Do not use soft or delaminating slate in showers, exterior freeze-thaw areas, or thin unsupported edges without checking the grade.


