igneous
Granite
Felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale. Colors range from pink to gray with a speckled appearance due to quartz, feldspar, and mica crystals. Dull to subvitreous luster with massive texture.
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Physical properties
Hardness of 6-7 on Mohs scale. Colors range from pink to gray with a speckled appearance due to quartz, feldspar, and mica crystals. Dull to subvitreous luster with massive texture.
Formation & geological history
Formed from the slow cooling of silica-rich magma far beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction for countertops, flooring, monuments, and as crushed stone for roadbeds.
Geological facts
Granite is the primary component of Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Identify in the field by visible interlocking crystals of quartz, pink or white feldspar, and dark biotite mica. Found globally in shield areas and mountain ranges.
