igneous
Granite
Intrusive Igneous Rock (Felsic)
Hardness: 6 on the Mohs scale. Color: Generally white, gray, pink, or red with dark mineral speckles. Luster: Vitreous to dull. Crystal structure: Phanagritic (coarse-grained, visible crystals). Cleavage: None (fractures unevenly). Specific gravity: 2.65 to 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: Generally white, gray, pink, or red with dark mineral speckles. Luster: Vitreous to dull. Crystal structure: Phanagritic (coarse-grained, visible crystals). Cleavage: None (fractures unevenly). Specific gravity: 2.65 to 2.75.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface over millions of years. Commonly found in continental crusts worldwide.
Uses & applications
Widely used in construction, architectural buildings, countertops, monuments, and decorative stone due to its durability.
Geological facts
Granite is the most common rock of Earth's continental crust and forms the core of many major mountain ranges.
Field identification & locations
Easily identified by its speckled appearance with visible quartz, feldspar, and mica grains. Found globally in shield areas and mountainous regions.
