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Honed granite counters are derived from slabs of granite extracted from mines or cliff sides. Granite is an igneous rock that contains a matrix of feldspar, quartz, mica and amphibole. As a building material, granite has been used throughout the history of humanity. Its use as an indoor material is relatively new.
Granite is a common and widely-occurring group of intrusive felsic igneous rocks that form at great depths and pressures under continents. Granite consists of orthoclase and plagioclase feldspars, quartz, hornblende, biotite, muscovite and minor accessory minerals such as magnetite, garnet, zircon and apatite.Rarely, a pyroxene is present.ranite consists of orthoclase and plagioclase feldspars, quartz, hornblende, biotite, muscovite and minor accessory minerals such as magnetite, garnet, zircon and apatite. Rarely, a pyroxene is present.