Commonly known as Ceppo di Gré, it is an ornamental
grey stone, particularly frost-proof, extracted in the
eponymously named town Gré, on the slopes of Monte
Clemo, on the northwestern shore of Lake Iseo and
widely used in architecture in northern Italy. It is part of
the clastic sedimentary rocks, originating from limestone
cementation of Dolomite clasts (debris) after they tumbled
down the slopes of the mountain and were compressed
by ice. The name comes from the word “Cepp”, which in
the Milanese dialect means “rock with pebbles.”