igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, colors ranging from pink to gray with speckled appearance, 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, colors ranging from pink to gray with speckled appearance, 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 metals deep beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction for countertops, flooring, monuments, and curbing due to its high durability and aesthetic appeal.
Geological facts
Granite is the most common rock of the Earth's continental crust and is essentially absent from oceanic crust.
Field identification & locations
Easily identified by its visible interlocking crystals of quartz, feldspar, and dark minerals like biotite mica. Found globally in continental shields and mountain belts.
