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MARBLE |
GRANITE |
SLATE |
LIMESTONE |
| Composite |
Calcium Carbonate, Calcite |
Quartz, Feldspar (varies) |
Muscovite, Chlorite (wide variation in composition) |
Calcium Carbonate |
| Hardness |
Soft |
Hard |
Soft |
Soft |
| Absorption |
Oil, Water |
Oil (varies), Water |
Low-medium oil, water and other liquids |
Oil Water |
| Limitations |
Absorbs oils and other liquids, easily scratched, acid sensitive |
Absorbs oils and other liquids, brittle |
Absorbs oils/liquids |
Absorbs oils and other liquids, easily scratched, acid sensitive |
| Sealer |
Penetrating type siloxane or fluoropolymer |
Sub-surface repellants |
Sub-surface repellants |
Penetrating type siloxane or fluoropolymer |
| Cleaner |
Natural soap |
Pure soap |
Pure soap |
Natural soap |
| Finish |
Polished- liquid paste, wax. Others - none |
None normally. Wax recommended. |
Acrylic/wax recommended |
Polished- liquid paste, wax Others - none |
| Notes |
Polished marble requires high maintenance, especially in high traffic areas. Non-reflective finishes work well with minimal maintenance. |
Typical for kitchen. Used in high stress situations. Polished granite more absorbant to liquids. Flamed granite surfaces are absorbant and should be sealed to retain original color. |
Cleft slate is durable in most situations. Wears off in high areas of the surface. Excellent exterior paving stone. Slate characteristics need to be compatible with the function required for. |
Porous and absorbent, has similar features to those of marble. Dense, low absorbent varities can be used for shower areas |
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