Glaciers can produce boulder clay which is the result of glacial abrasion. Boulder clay forms the basis of clay type soils in England.

Boulder clay....It is melted stone you get from concrete and mix it with flour. I used it for an experiment once. It is a fun project

boulder clay and chalk

You have to collect 20 clay and then ask the tassel mouse or boblink's to help you move the boulder.

There are various boulder clay cliffs in the UK, with notable examples including the Jurassic Coast in Dorset, the White Cliffs of Dover, and Holderness in East Yorkshire. These cliffs are formed from layers of boulder clay, a type of sedimentary rock created from glacial deposits. They are important geological and scenic landmarks along the UK's coastline.