How to calculate the weight contents (mass%) of raw materials used to synthesize mineral phases?

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Pierluigi Traverso

Dear Dr. Aghiles Hammas,

here below, I send you the requested info:

-Kaolin: formula H4 Al2 Si2 O9, composition Al2O3•2SiO2•2H2O (having high variation in composition)

-Talc: formula H2Mg3 (SiO3)4, composition 63,52% SiO2; 31,72% di MgO; 4,76% di H2O

-Alumina: Al2O3∙H2O or AlOOH (monohydrate) e Al2O3∙H2O or Al(OH)3 (trihydrate)

Best regards, Pierluigi Traverso

Aghiles Hammas

Dear Dr. Pierluigi Traverso,

Thank you for your answer. Please, I want to mix tese three raw materials for cordierite synthesis with chemical ratio of MgO:SiO2:Al2O3=9.6: 53.6: 36.8, so, I'm looking for a formula to obtain the weight contents (mass%) of each clay necessary for this synthesis. Do you have an idea about this formula ?

Ebenezer Jacob Dhas D.S.

Please refer to the paper to understand the phase diagrams.

Chapter Phase Diagrams for Geoscientists

and refer the following link for calculation https://www.webqc.org/molecular-weight-of-%28MgO%29%28Al2O3%29%28SiO2%29.html