Igneous Rock quiz

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Last updated: April 1, 2025

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Hint	Answer
glassy silicic rock	obsidian
fine grained silicic rocks	pumice and rhyolite
fine grained intermediate rock	andesite
fine grained mafic rock	basalt
medium grained silicic rock	microgranite
medium grained intermediate rock	microdiorite
coarse grained silicic rock	granite

Hint	Answer
coarse grained mafic rock	gabbro
coarse grained intermediate rock	diorite
coarse grained ultramafic rock	peridotite
glassy mafic rock	scoria
coarse grained silicic or intermediate rock	granodiorite
medium grained mafic rock	dolerite

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