igneous
Red Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, reddish-pink color due to potassium feldspar, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, reddish-pink color due to potassium feldspar, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling of magma rich in silica and alkali elements deep beneath the Earth's crust, typically over millions of years.
Uses & applications
Commonly used in construction, architectural facings, monuments, countertops, and decorative stone.
Geological facts
Red granite gets its distinctive pink or red hue from an abundance of potassium feldspar. It is one of the most durable and common continental rocks on Earth.
Field identification & locations
Easily identified by its speckled, coarse-grained appearance featuring interlocking crystals of pink feldspar, quartz, and dark biotite mica. Widely distributed globally in continental shields.
