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Few More Things You Wanted to Know About Granite

Granite is igneous rock. It is light in Where Granite is Found
color, but the grain can be medium or Granite is found on every continent of
coarse. The rock is composed mainly of the earth, especially in places where the
alkali feldspar and quartz and is easily earth has been worn away by erosion. It
recognizable by the visible grains of the often forms the core of mountains that
various dark minerals. Granite rocks are forceful pressures within the earth have
the most common of all crystalline rocks pushed upward. Sometimes bodies of
found on the surface of the earth. They granite are found in large outcroppings
are found all over the world, usually in of rocks that are found in chimney like
great masses called batholiths that often and overhanging rock formations. The
extend over thousands of miles. This is a Appalachian Mountain range in the United
popular material form use in monuments States is composed mostly of granite. It
and buildings because of its hardness, is also found in the Ozark Mountains, the
durability and the range of colors. Black Hills, and the front range of the
Composition of Granite Rocky Mountains. Granite is also produced
Granite is composed mainly of potash, in many states such as Georgia,
feldspar and quartz. The color of the California, Virginia, Minnesota, South
rock varies from gray to red and is Dakota and the Carolinas.
usually determined by the amount of the How Granite is Formed
potash feldspar. If there is a lot of Geologists have two different theories
glassy crystals in granite, it will tend about how granite was formed. One theory
to have a bluish color. Dark minerals, says that granite formed directly from
such as hornblende, biotite mica and molten lava. The other theory states that
muscovite mica can sometimes be found in it was formed as a result of the
granite. Some types of rock that are alterations of other rocks and that
commonly called granite contain different granite is metamorphic rock, rather than
amounts of plagioclase feldspar. Rocks igneous rock.
that contain about one-fifth of the Uses of Granite
amount of potash feldspar relative to the Granite has been used a building material
amount of plagioclase feldspar is really for thousands of years. In ancient Egypt,
granodiorite, rather than granite. Rocks the obelisks were built from granite.
that have the same composition as Today, granite is used in building
granite, but have a very large amount of monuments, curbs for roads, tombstones,
crystals are known as pegmatite. and as a structural element in buildings.




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