Trace Element Geochemistry in Clays

Section 4.3 sets out the principles underlying the structure of the silicate mineral family. Natural clay deposits are formed by the chemical weathering of rocks -largely as a result of the attack by slightly acidic surface waters. Rainwater, 

Quartz 100.0 Average composition of Tianqi Porcelain body  

Calculate how much Si02 and A1203 are contributed by sericite and subtract from original analysis %oSi02 %A1203 %K20 %MgO %Na20 

Assuming all Na20 comes from albite % albite = 1.7/11.8 x 100 = 14.4% 

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