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2. Stone tool - Wikipedia

   en.wikipedia.org/wiki/Stone_tool

   Stone tools found from 2011 to 2014 at the Lomekwi archeology site near Lake Turkana in Kenya, are dated to be 3.3 million years old, ... and polishing tools.

3. Lithic technology - Wikipedia

   en.wikipedia.org/wiki/Lithic_technology

   The flakes are shaped using the lithic reduction techniques, allowing for creation of various tools such as arrowheads and handaxes. Two stone characteristics will determine whether one is able to chip away large enough flakes to make tools out of: whether the stone is of a cryptocrystalline structure, and how conchoidally the stone fractures ...

4. Ground stone - Wikipedia

   en.wikipedia.org/wiki/Ground_stone

   In 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 tools are usually made of basalt , rhyolite , granite , or other cryptocrystalline and igneous stones whose coarse structure makes them ideal for grinding other materials, including ...

5. Lapidary - Wikipedia

   en.wikipedia.org/wiki/Lapidary

   Examining stone for accuracy of cut, using a magnifying glass. A gemcutter polishes stone, using felt or canvas-covered polishing wheel, and polishing compounds, such as tripoli or jeweler's rouge. Possibly using a mechanical facet-cutting device. A gemcutter may cut and polish diamonds for industrial purposes, and be designated as an ...

6. Diamond tool - Wikipedia

   en.wikipedia.org/wiki/Diamond_tool

   Shaped diamond tools are used to process stone to a particular shape. Resin-bonded diamond polishing pads are used to polish stone. Construction: Medium or small sized diamond saw blades, diamond core drill bits and some diamond grinding or polishing tools are often used in repairing roads, remodeling buildings, and processing building materials.

7. Tumble finishing - Wikipedia

   en.wikipedia.org/wiki/Tumble_finishing

   A well-chosen speed for stone polishing causes the rocks within the barrel to slide past each other, with the abrasive grit between them. The result of this depends on the coarseness of the abrasive, and the duration of the tumble. Typically, a full tumble polish from rough rock to polish takes 3–5 weeks, and is done in a minimum of 3 steps.