Question

A diamondiferous lamproite is ultrapotassic and has a molar K2O/Na2O ratio of 11. If the Na2O content of the rock is 0.62 wt%, the K2O content is _____ wt% (answer in one decimal place; molecular weight of Na2O = 61.98, and K2O = 94.20).

Answer 1

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$11115045$