Classification of Metamorphic Rocks
Metamorphic rocks are classified by their mineral composition, the source rock, also known as a protolith, and the context (pressure, temperature, hydrological features, etc.) of its formation.
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Famous quotes containing the word rocks:
“If all else perished, and he remained, I should still continue to be; and if all else remained, and he were annihilated, the universe would turn to a mighty stranger. I should not seem a part of it.... My love for Heathcliff resembles the eternal rocks beneatha source of little visible delight, but necessary. Nelly, I am Heathcliffhes always, always in my mindnot as a pleasure, any more than I am always a pleasure to myselfbut as my own being.”
—Emily Brontë (18181848)
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