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Aboriginal grinding grooves, or axe-grinding grooves, have been found across the Australian continent. [3] The working edge of the hatchet or axe was sharpened by rubbing it against an abrasive stone, eventually leading to the creation of a shallow oval -shaped groove over time, [ 4 ] The grooves vary in length from 80 mm (3.1 in) up to 500 mm ...
Stone slab in east-central California used to grind acorns. 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. [1] Some grinding stones are portable; others are not and, in fact, may be part of a stone outcropping.
The basic anatomy of a millstone. This is a runner stone; a bedstone would not have the "Spanish Cross" into which the supporting millrind fits. Millstones or mill stones are stones used in gristmills, used for triturating, crushing or, more specifically, grinding wheat or other grains. They are sometimes referred to as grindstones or grinding ...
Core tools ("Sumatraliths") made by complete flaking on one side of a pebble and grinding stones also made on rounded pebbles, usually in association with iron oxide; A high incidence of used flakes (identified from edge-damage characteristics)
Quern-stones are stone tools for hand-grinding a wide variety of materials, especially for various types of grains. They are used in pairs. The lower stationary stone of early examples is called a saddle quern, while the upper mobile stone is called a muller, rubber, or handstone. The upper stone was moved in a back-and-forth motion across the ...
Oralu kallu or rubbo kallu is a household stone implement used for wet grinding. It consists of two separate parts. A grinding stone called gundukallu (ಗುಂಡುಕಲ್ಲು)/gootada kallu (ಗೂಟದಕಲ್ಲು) is a stout cylindrical stone of rounded ends with or without a wooden handle, and a base stone which actually is called oralu kallu has a central well with a diameter ...
A metate (or mealing stone) 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 maize and other organic materials during food preparation (e.g., making tortillas ).
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