clay
kleɪ
noun
a stiff, sticky fine-grained earth that can be moulded when wet, and is dried and baked to make bricks, pottery, and ceramics.
the soil is mainly clay
earth,terracotta,gault,catlinite,pipeclay,pipestone,argil,china clay,kaolin,adobe,ball clay,bole,pug,slip,barbotine,fireclay