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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 an igneous rock composed of mostly two minerals: quartz and feldspar. It is an intrusive rock, meaning that it crystallized from magma that cooled far below the earth's surface.Its name is derived from the Latin word 'granum', which means 'grain', a reference to the easily-seen minerals in the rock.ranite contains mostly quartz and orthoclase feldspar; other minerals make up less than half of the rock. The magma that crystallizes into granite likely forms in the upper mantle or lower lithosphere, where other rocks partially melt. Granite is used in buildings and some granite is mined for rare elements.