from Wired News
Old Stones Reveal Their Age
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A new technology for use in dating of archaeological objects. It uses the method of measuring the amount of moisture that has diffused into the surface layer of quartz - normally found in inorganic stones. It is also a very expensive test to run - costing up to US$ 1,000 per object - due to the use of particle accelerator, which is more commonly used in the study of sub-atomic physics.