Feldspar is the most abundant mineral in rocks that are located at or near the earth's surface.
What kind of rock is most abundant?
Sedimentary rocks are the most common rocks exposed on the Earth's surface but are only a minor constituent of the entire crust, which is dominated by igneous and metamorphic rocks.
Where is metamorphic rock frequently found?
Metamorphic rocks are made by either heating up or squashing the earth's crust. They are often found in mountainous regions.
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