Stonehenge’s ancient stones and their wider landscape are being investigated with the help of a Niton XL3t material analyser from Niton UK. By producing instant read-outs of the composition of stones and soil, the handheld x-ray fluorescence instrument has allowed the archaeological team from Sheffield University to change the way they work. The Niton XL3t enabled the team, co-ordinated by archaeologist Roger Doonan, to make a rapid prelimi

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