Gnomes may be made from terracotta clay slip ( runny clay ) poured into molds.
2.
The dyes, generally variations of earthy browns and blacks, are obtained from mangrove sap, terracotta clay and specially prepared soot.
3.
In 1959 Fontana exhibited cut-off paintings with multiple combinable elements ( he named the sets " quanta " ), and began " Nature ", a series of sculptures made by cutting a gash across a sphere of terracotta clay, which he subsequently cast in bronze.