igneous
Granite
Granite
Hardness: 6-7 on Mohs scale; Color: Pink, gray, white with black specks; Luster: Phaneritic (crystalline); Structure: Massive/Granular; Cleavage: None (fractures); Specific Gravity: 2.65-2.75
- Hardness
- 6-7 on Mohs scale
- Color
- Pink, gray, white with black specks
- Luster
- Phaneritic (crystalline)
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Pink, gray, white with black specks; Luster: Phaneritic (crystalline); Structure: Massive/Granular; Cleavage: None (fractures); Specific Gravity: 2.65-2.75
Formation & geological history
Formed by the slow crystallization of magma below Earth's surface. It is a plutonic rock found in continental crust and mountain ranges, often dating back hundreds of millions to billions of years.
Uses & applications
Extensively used in construction, architectural facades, kitchen countertops (as seen in the image), monuments, and paving stones.
Geological facts
Granite is the most common igneous rock found on Earth's continents. The iconic peaks of Yosemite National Park are largely composed of granite batholiths.
Field identification & locations
Identify by its coarse-grained texture and visible crystals of quartz, feldspar, and mica. Found in areas with continental bedrock or in quarries worldwide.
