Niger Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Canada was US$61 during 2013, according to the United Nations COMTRADE database on international trade. Niger Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Canada - data, historical chart and statistics - was last updated on June of 2024.