
igneous
Granite
Intrusive igneous rock composed of quartz, alkali feldspar, and plagioclase
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale; white, gray, pink, or speckled color; vitreous to dull luster; phaneritic crystal structure.
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Physical properties
Hardness of 6-7 on Mohs scale; white, gray, pink, or speckled color; vitreous to dull luster; phaneritic crystal structure.
Formation & geological history
Formed from the slow cooling of silica-rich magma beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction, architectural facades, countertops, and monumental stone.
Geological facts
Granite makes up a major part of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Identified by its visible interlocking crystals of quartz and feldspar; commonly found in mountain ranges and shield areas globally.