The Best-Known Igneous Rock


Granite is the best-known igneous rock. Many people recognize granite because it is the most common igneous rock found at Earth’s surface and because granite is used to make many objects that they encounter in daily life. These include countertops, floor tiles, paving stone, curbing, stair treads, building veneer, and cemetery monuments. Granite is used all around us – especially if you live in a large modern city.

Granite is also well known from its many world-famous natural exposures. These include: Stone Mountain, Georgia; Yosemite Valley, California; Mount Rushmore, South Dakota; Pikes Peak, Colorado; and White Mountains, New Hampshire.

Granite in Yosemite Valley
Granite in Yosemite Valley: Photograph of Yosemite Valley, California, showing the steep granite cliffs that form the walls of the valley.

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