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Felsic rock tend to be higher in silica but in iron and magnesium oxides. which rock is most felsic ? explain?

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1. rhyolite

2.andesite

3.basalt

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  1. 1- Rhyolites

    These are acid lavas containing free quartz, which may even be visible to the Mk1 eyeball in the porphyritic types

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