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Shale, the colors of eternity
Shale and quartzite are both frost-resistant and have the added advantage of retaining their color over the years.
Our collection of shale paving stones
- Spanish green shale
Hardness 
Flatness Adherence Frost resistance Longevity Color fastness - Lucerne stone
Hardness Flatness Adherence Frost resistance Longevity Color fastness
Information
Shale is a very hard stone that is frost resistant; it is formed from clay deposits made up of hydrated aluminosilicates that are often mixed with quartz and mica.