igneous
Granite
Felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, speckled white, pink, and black color, dull to vitreous luster, and a phaneritic crystal structure. It has poor cleavage and a specific gravity of approximately 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, speckled white, pink, and black color, dull to vitreous luster, and a phaneritic crystal structure. It has poor cleavage and a specific gravity of approximately 2.65 to 2.75.
Formation & geological history
Forms from the slow cooling of silica-rich magma beneath the Earth's surface over millions of years. It is a major component of continental crusts globally.
Uses & applications
Widely used in construction for dimension stone, countertops, flooring, and monumental architecture due to its durability.
Geological facts
Granite is the most common intrusive rock on Earth and forms the core of many major mountain ranges. Its name is derived from the Latin granum, meaning grain.
Field identification & locations
Easily identified by its distinct interlocking mineral grains of quartz, feldspar, and biotite mica. Found worldwide in shield areas and mountainous regions, making it a staple for field geologists.
