Ground stone - Wikipedia, the free encyclopediaIn archaeology, ground stone is a category of stone tool formed by the grinding of a coarse-grained tool stone, either purposely or incidentally. Ground stone.obsidian stone tools for grinding,Jordan: Basic Stone ToolsOther kinds of stone tools include various hammers and grinding basins, not . Although obsidian flakes are capable of breaking with a startlingly sharp edge.What Kinds of Materials Are Used to Cut Obsidian? | eHowObsidian is a volcanic rock formed when lava cools quickly. . This type of saw and blade are the standard stone cutting tool for lapidary projects. . Obsidian can also be shaped for cabochons or other jewelry pieces using grinding wheels.
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