Summary of Characteristics for Slate and Stone Materials
| Thickness mm | Surface finish | Colour | Scratch resistance | Strength | |
| Italian slate | 20 & 30 40/50 to order | Riven & Honed | Black | 7.5 | Medium |
| Brazilian slate | 20 & 30 |
Riven Honed |
Dark grey |
8 8 |
Medium Medium |
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| Limestone | 30 only | Polished | Light Beige Sandy Cream |
8 | Low |
| Sandstone | 50 & 75 | Rubbed | Beige | 9 | Low |
| Granite | 20&30 | Polished & Honed | Black | 10 | Medium |
