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The greatest problem with dating an artefact from an archaeology site is that nearly every absolute dating process requires the destruction of at least a piece of the object in conducting the analysis. There are relatively few dating laboratories and having an artefact dated can be an expensive exercise especially if the artefact is not of great value itself.

This term means that older artefacts are usually found below younger items.Crystalline minerals when subjected to intense heat will burn with differing colours of flame. They remove that water by firing again and weigh the piece before and after. Mostly used to date pottery in archaeology the method is very effective but costly. Then I started finding a large number of pieces of clay pottery. The shape and style of an artefact changes through time although its function may remain the same.The changing styles of pottery, glass, stoneware, and metal objects provide archaeology analysts with known progressive sequences.

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