J. W. Pettegrew and K. Panchalingam Introduction and Background A. Chemical Characteristics Aluminum is the third most abundant element in the earth’s crust (over 8% (W/W) of the earth’s crust) following oxygen (46.6%) and silicon (27.7%). Aluminum bonds to oxygen and silicon in aluminosilicate granites and clays (Bailar et al 1984; Cotton et al…
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