igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, colors typically range from pink to gray depending on its chemistry, luster is dull to vitreous, phaneritic crystal structure, specific gravity is 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, colors typically range from pink to gray depending on its chemistry, luster is dull to vitreous, phaneritic crystal structure, specific gravity is 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling of magma rich in silica and alkali metal oxides that is trapped beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction for countertops, floor tiles, paving, and monuments due to its durability and aesthetic appeal.
Geological facts
Granite makes up a major part of the Earth's continental crust and is one of the toughest natural building materials available.
Field identification & locations
Easily identified by its visible interlocking crystals of quartz, feldspar, and mica. Commonly found in continental shield areas and mountain roots worldwide.
