[SOLVED] Sandstone and Slate is used for building, but these rocks have different Properties. Which rock woul you use for roof? Which would you use for the walls of a building? Explain.

Sandstone is like concrete - compressed sand, whilst slate is easily split into thin sheets.Slate for the roof and sandstone for the walls.

Sandstone and Slate is used for building, but these rocks have different Properties. Which rock woul you use for roof? Which would you use for the walls of a building? Explain.