Colour, properties:

block formations

Clayey sandstones are sensitive to frost, calcareous sandstones are subject to attack by flue gases, especially carbon and sulphur compounds.

Formation:

Solidification of accumulated sand by precipitated binders, overflowing or circulating water. Sandstones are named according to their mineral composition, structure, matrix or binder, colour, use, distribution, time of formation and outstanding properties. A quartz-rich sandstone with a siliceous binder is called sedimentary quartzite (or quartzite for short), a coarse-grained, feldspar-rich, usually reddish sandstone is called arkose, a grey to grey-green solid sandstone from the Palaeozoic is called greywacke. Sand-lime brick is the name for a sandstone with a high lime content, but is also the name for a calcareous artificial stone.

Locations:

Alpine foothills, Keuper areas of Franconia and Thuringia, red sandstone regions on both sides of the Upper Rhine

Products:

Work stones and wall stones, grinding stones, façade slabs, floor slabs