igneous
Granite
Felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale; composed primarily of quartz, alkali feldspar, and plagioclase; displays a phaneritic (coarse-grained) texture with a vitreous to dull luster.
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Physical properties
Hardness of 6-7 on Mohs scale; composed primarily of quartz, alkali feldspar, and plagioclase; displays a phaneritic (coarse-grained) texture with a vitreous to dull luster.
Formation & geological history
Forms from the slow, underground cooling of silica-rich magma; commonly associated with continental crust and mountain-building events.
Uses & applications
Widely used in construction for countertops, flooring, and monuments due to its extreme durability and aesthetic appeal.
Geological facts
Granite is the most common plutonic rock on Earth's surface and forms the geological core of many major mountain ranges.
Field identification & locations
Easily identified in the field by its interlocking, visible grains of light quartz, pink or white feldspar, and dark biotite mica.
