Stones Stone is a solid non-metallic mineral matter , which has been used as a building material. Stones are nothing but cut pieces of rock, the hard material of the earth crust exposed on the earth or under the soil uses of stone 1. stones are extensively used for the construction of foundation, walls, columns, and arches in building. 2. they are ideally suited for the construction of retaining walls, forts, piers of bridges and dams. 3 Polished granite and marble are used for the face work og important buildings. face work: the material that is used for outside or front side of building or wall. 4 stone slabs are used for flooring, damp-proof course, lintels, roofing, and pavers round the building, as well as for footpath. 5 Crushed stone are used as a inert material in concrete, for making artificial building blocks, such as railway ballast and to provide base course for road. inert material in concrete is aggregates