Day: 22 July 2021
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Jet mining on Roseberry Common
An intricate necklace of 110 beads of jet was found in a burial cist in Kilmartin, Argyll. It has been dated to between 2050 and 1800 BC. The jet is considered to be ‘Whitby Jet’. Jet is the fossilised remains of the Araucaria or monkey puzzle tree that were buried in marine sediments during the…