Sandstone  is a mid-granulosum, hard hassock, which had been arised as result of sealing grain of quartzite, anorthite, mica and other crumbs of rocks and minerals. Wind and water transport this crumbs to lakes, rivers and seas where they sediment in layers on the bottoms.

Sandstones are quite soft materials, often used in architecture. The most popular in Poland is yellow sandstone, however there are also some red, white, grey and colorfully kinds.