The clinker and the required amount of gypsum are ground to a fine powder in horizontal mills similar to those used for grinding ... Grinding stone tools makes ...
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Stone was the one hard and easily found material the Indians had. So they used it to make tools. Most stone tools were shaped by chipping.
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The Basic Corn Grinding Tools Of The Southwest," p. ... The most common stone used to make modern grinding stones is vesicular (contains tiny holes) granite.
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Archaic technology included ground-stone tools for cutting trees and processing plant foods, and objects of carved bone and shell for implements and ornaments.
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In archaeology, ground stone is a category of stone tool formed by the grinding of a coarse-grained tool stone, either purposely or incidentally.
Grinding and Pounding Stones. These stones are mostly used for gringing purposes. Much of the material that was being ground also required some pounding action.
Hard-stone grinding tools were used to work softer metamorphic and sedimentary slate, shale and sandstone rock into artifacts. Other People Are Reading.
Conditions under which grinding wheels are used vary considerably, ... Marble and other stone . Rubber and leather . ... Dressing tools.
And let's not forget chalk, the soft stone used for writing on blackboards or sidewalks. Edged Stone Tools. But what makes me light up is edged stone tools.
A stone tool is, in the most general ... some ground stone tools were used for grinding plant foods and were polished not just by intentional shaping, but also by use.
Quick Answer. Native American grinding stones are tools used by various tribes to grind seeds, nuts and foods such as corn into a paste that they baked and preserved.
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Grinding Stones Used for Sharpening Tools | eHow.com. Grinding stones are convenient accessories used to sharpen knives, blades and other tools.
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In pecking and grinding stone tools, ... Antlers were used to flake stone into tools, and could be used for any type of tool that had to be strong and durable.
Suggestions for Recognizing Sites and Artifacts: Milling and Grinding Tools ... This item was most likely used in a wooden mortar, rather than a stone one.
The Plains Indians had to have sturdy and effective weapons and tools. They had to use the ... the shaft until it was perfect used it. THE GRINDING STONE .
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