Wiktionary
n. (plural of metamorphic rock English)
Usage examples of "metamorphic rocks".
It's a geological formation of igneous and metamorphic rocks, composed primarily of granites and gneisses, underlying parts of Connecticut, New York, Pennsylvania, and New Jersey.
The immense areas in some parts of the world, for instance in South America, of bare metamorphic rocks, which must have been heated under great pressure, have always seemed to me to require some special explanation.
Although heat did play a role in some of earth's metamorphic geology, most metamorphic rocks were formed by extreme pressure.
There's this sill he talks about, and down to that it'll be metamorphic rocks all the way.
She knew that metamorphic rocks broke that way, but schists and such were generally too weak to make good tools.
Garnets are found in granites and in metamorphic rocks, such as marbles, in a number of locations throughout northern Faerun Thought by some fading faiths to be the hardened blood of divine avatars, garnets are generally considered useless in magical work.