The Guardian's Audio Long Reads

We are raiding the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2019: Demand for ‘healing’ crystals is soaring – but many are mined in deadly conditions in one of the world’s poorest countries. And there is little evidence that this billion-dollar industry is cleaning up its act. By Tess McClure. Help support our independent journalism at theguardian.com/longreadpod