igneous
Granite
Felsic intrusive igneous rock
Hardness: 6-7 on the Mohs scale. Color: Varies widely (pink, white, gray, black) depending on mineral makeup. Luster: Dull to glassy. Crystal structure: Phaneritic (coarse-grained, visible interlocking crystals). Specific gravity: 2.65-2.75.
- Hardness
- 6-7 on the Mohs scale
- Luster
- Dull to glassy
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Physical properties
Hardness: 6-7 on the Mohs scale. Color: Varies widely (pink, white, gray, black) depending on mineral makeup. Luster: Dull to glassy. Crystal structure: Phaneritic (coarse-grained, visible interlocking crystals). Specific gravity: 2.65-2.75.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface over millions of years. Common in continental crust.
Uses & applications
Widely used in construction, building facades, monuments, countertops, and floor tiles due to its durability.
Geological facts
Granite is the most common rock of Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Easily identified by its speckled pink, white, and black appearance with visible interlocking mineral grains (quartz, feldspar, mica). Found globally in mountainous regions and shield areas.
