
igneous
Granite
Intrusive Felsic Igneous Rock
AI-generated identification · may be incorrectHardness 6 on Mohs scale; pink, white, or gray with speckled mineral grains; vitreous to dull luster; phaneritic crystal structure; specific gravity 2.65-2.75.
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Physical properties
Hardness 6 on Mohs scale; pink, white, or gray with speckled mineral grains; vitreous to dull luster; phaneritic crystal structure; specific gravity 2.65-2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma rich in silica and alkali feldspar deep beneath Earth's crust.
Uses & applications
Widely used in commercial construction, kitchen countertops, monuments, and architectural facings.
Geological facts
Granite is the most common intrusive rock on Earth's continental crust and forms the structural core of many major mountain ranges.
Field identification & locations
Identified by visible interlocking crystals of quartz, feldspar, and micas. Found globally in continental shields and intrusive plutons.