08-19-2014, 11:00 AM
Granite Stone
Granite basically refers to a common, coarse-grained, light-colored, hard igneous rock comprising chiefly of quartz, orthoclase or microcline, and mica, used widely in monuments and buildings. It is a common and widely-occurring type of intrusive, felsic, igneous rock that form at great depths and pressures under continents. Ordinary granite always carries a small amount of plagioclase, but when this is absent the rock is referred to as alkali granite. Granite consists of orthoclase and plagioclase feldspars, quartz, hornblende, biotite, muscovite and minor accessory minerals such as magnetite, garnet, zircon and apatite.
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Granite basically refers to a common, coarse-grained, light-colored, hard igneous rock comprising chiefly of quartz, orthoclase or microcline, and mica, used widely in monuments and buildings. It is a common and widely-occurring type of intrusive, felsic, igneous rock that form at great depths and pressures under continents. Ordinary granite always carries a small amount of plagioclase, but when this is absent the rock is referred to as alkali granite. Granite consists of orthoclase and plagioclase feldspars, quartz, hornblende, biotite, muscovite and minor accessory minerals such as magnetite, garnet, zircon and apatite.