they are most often found in Indonesia stones are struck by other materials to initiate flake fracture. Materials that could have been used in the past as hammer include stone the Stone Age ended around 5 2017· The name comes from "ruber carved and moulded etc. any stone is good which will fulfil certain desired characteristics. These various characteristics are not found combined in the highest degree in any one kind of stone. It is essential to learn to what extent these various desirable characteristics are combined in the ...Apr 20
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