igneous
Granite
Intrusive Igneous Rock
Hardness: 6-7 on Mohs scale. Color: Varies widely (pink, gray, white) depending on mineral content. Luster: Dull to vitreous. Crystal structure: Phaneritic (coarse-grained, visible interlocking mineral crystals). Specific gravity: 2.65-2.75.
- Hardness
- 6-7 on Mohs scale
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Varies widely (pink, gray, white) depending on mineral content. Luster: Dull to vitreous. Crystal structure: Phaneritic (coarse-grained, visible interlocking mineral crystals). Specific gravity: 2.65-2.75.
Formation & geological history
Formed from the slow crystallization of magma below the Earth's surface over millions of years. Common in continental crust.
Uses & applications
Widely used in construction, architectural buildings, monuments, countertops, paving stones, and landscaping.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Identified by its speckled appearance with visible quartz, feldspar, and mica grains. Found globally in mountainous regions and shield areas.
