olmec colossal heads were created using this method of sculpting
Olmec colossal heads Archaeological investigation of Olmec basalt workshops suggest that the colossal heads were first roughly shaped using direct percussion to chip away both large and small flakes of stone. The sculpture was then refined by retouching the surface using hammerstones, which were generally rounded cobbles that could be of the same basalt as the monument itself, although this was not always the case. Abrasives were found in association with workshops at San Lorenzo, indicating their use in the finishing of fine detail. Olmec colossal heads were fashioned as in-the-round monuments with varying levels of relief on the same work; they tended to feature higher relief on the face and lower relief on the earspools and headdresses.[22] MonumentÂ 20 at San Lorenzo is an extensively damaged throne with a figure emerging from a niche. Its sides were broken away and it was dragged to another location before being abandoned. It is possible that this damage was caused by the initial stages of re-carving the monument into a colossal head but that the work was never completed.[23]