Nilsi? Slate has grey, green, brown and reddish shades; the colours of autumn. Recommended use: Well suited for all building with special requirements for combined beauty and durability. Foundations, facades, paving, embankments, indoor and outdoor cladding, swimming pools, fountain basins, fireplaces, grills, ovens, underground cellars, steps, landings, garden furniture, decorative stones, grave stones, etc. 1.2 square metres of schist should be available per one finished square metre to guarantee a satisfactory colour and shape design when using natural stones for building.