| Usually, the toolmaker started with a large cobble, probably picked out of a stream bed, and flaked it with a hammerstone into the required shape. |
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| Waterworn and hence rounded, up to about the size of a fist, the pebble, preferably flattish rather than spherical, was given a few violent but skillfully applied blows by a hammerstone. |
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| In this procedure a point of the rock being worked was bruised by a hard hammerstone, the struck points crumbling into powder under relatively light but rapidly delivered blows. |
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| Archaeological objects, including knives, scrapers, a hammerstone, projectile points, and a large quantity of discarded stone flakes have been found here. |
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| A boulder thought to have been used by early humans as a hammerstone. |
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| On the other hand, in the same crannog, a hammerstone broken in two was found, each half in a different place, as were two parts of a figurine at Dumbuck. |
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| The tools were formed by knocking pieces off a river pebble, or stones like it, with a hammerstone to obtain large and small pieces with one or more sharp edges. |
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| Hammerstone Products Ltd. actively promotes limestone products in the 26 region and receives a fee on every tonne sold from Birch Mountain's Muskeg Valley Quarry and Hammerstone Project. |
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