Malawi Exports of siliceous fossil meals (kieselguhr ), similar siliceous earths to Zambia was US$3.54 Thousand during 2008, according to the United Nations COMTRADE database on international trade. Malawi Exports of siliceous fossil meals (kieselguhr ), similar siliceous earths to Zambia - data, historical chart and statistics - was last updated on May of 2024.