Grenada Exports of pumice stone, emery, natural corundum, garnet, other natural abrasives to Guyana was US$168 during 2015, according to the United Nations COMTRADE database on international trade. Grenada Exports of pumice stone, emery, natural corundum, garnet, other natural abrasives to Guyana - data, historical chart and statistics - was last updated on June of 2024.