igneous
Granite
Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, colors range from pink to gray, dull to vitreous luster, granular phaneritic crystal structure, specific gravity around 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, colors range from pink to gray, dull to vitreous luster, granular phaneritic crystal structure, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling of silica-rich magma beneath the Earth's surface, often dating back billions of years across Precambrian shields.
Uses & applications
Widely used in commercial construction, architectural cladding, kitchen countertops, monuments, and landscaping.
Geological facts
Granite is the most common rock of the Earth's continental crust 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, feldspar, and dark micas; found worldwide in continental shields and intrusive plutons.
