what causes granite to become kaolin
what causes granite to become kaolin,Granite weathering, saprolitization and the formation of . - UiO - DUOJun 28, 2013 . conductivity, swelling clays like smectite become increasingly unstable, which leads to an enrichment of kaolinite and illite (Righi and Meunier, 1995). Kaolinite dominated clay mineral phases comprise, together with Ti- and Fe-oxides and hydroxides, residual quartz, accessory minerals like zircon and.what causes granite to become kaolin,China Clay to Dartmoor - The Dartmoor SocietyIn time, the accumulated weight of the sediments caused them to become compressed and hardened, converting them from loose sediments into highly . In some parts of the South West, the feldspar in the granite is higher in its soda content than its potash content and these places are where china clay is found today.observations on the formation of kaolinite in the st. austell granite .OBSERVATIONS ON THE FORMATION OF. KAOLINITE IN THE ST. AUSTELL GRANITE,. CORNWALL. C. S. EXLEY. Department of Geology, University of Keele .. centration of feldspar was generally so high that it caused two problems. . has become incorporated into the new clay minerals (especially montmorillonite) as.