igneous
Granite Boulder
Felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, composed mainly of quartz, alkali feldspar, and plagioclase. Displays a phaneritic texture with a dull to vitreous luster.
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Physical properties
Hardness of 6 on the Mohs scale, composed mainly of quartz, alkali feldspar, and plagioclase. Displays a phaneritic texture with a dull to vitreous luster.
Formation & geological history
Formed by the slow cooling of magma beneath the Earth's surface over millions of years. Common in continental crust and mountain ranges.
Uses & applications
Widely used in construction, architectural building facades, countertops, and landscaping.
Geological facts
Granite is the most common plutonic rock on Earth and forms the core of many major mountain ranges.
Field identification & locations
Easily identified in the field by its visible interlocking mineral crystals of quartz and feldspar. Found globally in ancient cratons and shield areas.
