igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Hardness: 6-7 (Mohs scale), Color: Pinkish-grey with visible black and white grains, Luster: Vitreous to dull, Structure: Phaneritic (coarse-grained), Specific Gravity: 2.63 - 2.75
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Physical properties
Hardness: 6-7 (Mohs scale), Color: Pinkish-grey with visible black and white grains, Luster: Vitreous to dull, Structure: Phaneritic (coarse-grained), Specific Gravity: 2.63 - 2.75
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface. This process usually occurs over millions of years within the continental crust at varying depths.
Uses & applications
Extensively used in construction for countertops, floor tiles, paving stones, curbing, and monuments due to its durability and aesthetic appeal.
Geological facts
Granite is the primary component of the Earth's continental crust. Its name comes from the Latin 'granum', meaning a grain, in reference to its coarse-grained structure.
Field identification & locations
Identify by its interlocking crystalline texture and lack of layering. Commonly found in mountainous regions or where ancient shield rocks are exposed. Look for the presence of translucent quartz and opaque feldspar.
