A metate is a type or variety of quern, a ground stone tool used for processing grain and seeds. In traditional Mesoamerican cultures, metates are typically used by women who would grind nixtamalized
Metate, mano and corn, all circa 12th century AD, from Chaco Canyon, USA
In archaeology, a grinding slab is a ground stone artifact generally used to grind plant materials into usable size, though some slabs were used to shape other ground stone artifacts. Some grinding st
Stone slab in east-central California used to grind acorns