Granite is a felsic intrusive igneous rock that typically contains quartz, feldspar, mica, and amphibole. The most well known granite in Colorado is Pikes Peak granite. Pikes Peak granite is characteristically pink due great amounts of microcline feldspar (potassium feldspar) in its composition. Unique minerals, such as smoky quartz, topaz, and amazonite, can be found in Pikes Peak granite due to the extremely slow cooling process that formed the rock.

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