igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale. Colors typically include pink, white, gray, and black speckling. Luster is dull to vitreous in polished form. Crystal structure is phaneritic (coarse-grained visible crystals). Specific gravity ranges from 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale. Colors typically include pink, white, gray, and black speckling. Luster is dull to vitreous in polished form. Crystal structure is phaneritic (coarse-grained visible crystals). Specific gravity ranges from 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling of silica-rich magma beneath the Earth's surface over millions of years. Geologically found in continental crusts globally.
Uses & applications
Widely used in building construction, countertops, monuments, paving stones, and interior design.
Geological facts
Granite is the most common rock of the Earth's continental crust and is frequently used as a benchmark for durability in architectural history.
Field identification & locations
Easily identified by its distinct interlocking mineral grains of quartz, feldspar, and micas. Found globally in ancient shield areas and mountain ranges.
