Meet the 'crunchers' who purchase 'edible' dirts, clays and chalks online for a number of supposed health benefits. Numerous retailers have set up shop on digital marketplaces like Etsy and to offer rocks and other geological detritus for human consumption, priced at less than £10.Suppliers use descriptives terms you'd recognise in a wine shop, touting their product as having 'a very pleasant earthy taste with a medium hard crunch'.
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