igneous
Granite
Intrusive Igneous Rock
Hardness of 6-7 on the Mohs scale, colors typically include pink, white, gray, and black speckled appearance, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, colors typically include pink, white, gray, and black speckled appearance, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma beneath the Earth's surface over millions of years, commonly found in continental crusts.
Uses & applications
Widely used in construction, architectural buildings, countertops, monuments, and curbing.
Geological facts
Granite is the most common intrusive rock of the Earth's continental crust and forms the core of many major mountain ranges.
Field identification & locations
Easily identified by its distinct speckled, interlocking mineral grains of quartz, feldspar, and mica. Found globally in ancient shield areas and mountain roots.
