Thermoluminescence dating using fine grains from pottery
Unfortunately, it is not possible to achieve this precision for the majority of art objects.Among the reasons for this is the small amount of material that may be taken for testing.
Most mineral materials, including the constituents of pottery, have the property of thermoluminescence (TL), where part of the energy from radioactive decay in and around the mineral is stored (in the form of trapped electrons) and later released as light upon strong heating (as the electrons are detrapped and combine with lattice ions).
Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environment Sciences, Lanzhou University, Lanzhou730000, China;2.
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While not so accurate as radiocarbon dating, which cannot date pottery (except from soot deposits on cooking pots), TL has found considerable usefulness in the authenticity of ceramic art objects where high precision is not necessary.
Since the university laboratories involved with TL are research facilities, they generally will not accept art objects for authentication on a routine basis.
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