Final answer:
The Dipylon Krater from circa 740 BCE is made of Painted Terracotta, reflecting the Geometric period's artistic ethos with its use of geometric shapes and patterns on a monumental grave-marker-sized krater.
Step-by-step explanation:
The Dipylon Krater, dating back to around 740 BCE and originating from Athens, Greece, is primarily made of Painted Terracotta. This magnificent piece of Geometric period pottery reflects a Greek cultural renaissance post-Dark Ages, showcasing a turn towards geometric shapes and patterns within its artistic expression. The terracotta material, a type of fired clay, was a standard medium for Greek potters, especially in the city of Athens which was the hub for pottery production at the time.
Notably, during the Geometric period, monumental-sized kraters were prevalent as grave markers in the cemetery outside the Dipylon Gate of Athens, indicating the significance of terracotta objects in funerary practices.