igneous
Granite
Felsic intrusive igneous rock
Hardness: 6 on the Mohs scale. Color: Varies widely (pink, white, gray, black) depending on mineral makeup. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible crystals). Specific gravity: 2.65 - 2.75.
- Hardness
- 6 on the Mohs scale
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6 on the Mohs scale. Color: Varies widely (pink, white, gray, black) depending on mineral makeup. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible crystals). Specific gravity: 2.65 - 2.75.
Formation & geological history
Forms from the slow crystallization of magma below Earth's surface over millions of years, typically found in continental crust.
Uses & applications
Widely used in construction, architectural facades, monument building, countertops, and decorative aggregate.
Geological facts
Granite is the most common intrusive rock in Earth's continental crust and is a major component of mountain ranges.
Field identification & locations
Easily identified by its speckled appearance showing interlocking crystals of quartz, feldspar, and mica. Found worldwide.
