Walker, K. (Ed.), 2018b. Stonechat: The e-Newsletter of the Implement Petrology Group, Volume 6. pp 23. CONTENTS EditorialSupply and demand in prehistory? Economics of Neolithic Mining in NW Europe (NEOMINE), Stephen Shennan, Andy Bevan, Kevan Edinborough, Tim Kerig, Mike Parker Pearson and Peter SchauerA contextual and comparative analysis of the uses and significance of Northern British perforated stone implements: a preliminary study, Amber RoyRadio 3 Quartz, a recommendation from Timothy DarvillShetland Workshop and IPG field trip, May 2017, Alison SheridanVin’s memorial book: call for papers, Katharine WalkerReview of the Neolithic Studies Group Meeting on ‘Extracting more than a rock? Insights into the acquisition of stone and flint in the Neolithic’, November 2017 DOWNLOAD PDF Available here