igneous
Granite
Felsic intrusive igneous rock
Hardness: 6 on Mohs scale; Color: Varies widely (pink, gray, white) with dark mineral flecks; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained, visible crystals); Specific gravity: 2.65 to 2.75
- Hardness
- 6 on Mohs scale
- Color
- Varies widely (pink, gray, white) with dark mineral flecks
- Luster
- Vitreous to dull
Identified More igneous →
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Physical properties
Hardness: 6 on Mohs scale; Color: Varies widely (pink, gray, white) with dark mineral flecks; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained, visible crystals); Specific gravity: 2.65 to 2.75
Formation & geological history
Formed from the slow cooling and crystallization of magma rich in silica and alkali feldspar beneath the Earth's surface, typically over millions of years.
Uses & applications
Commonly used in construction, monument building, countertops, flooring, and architectural facing.
Geological facts
Granite is the most common plutonic rock of Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its speckled appearance showing interlocking crystals of quartz, feldspar, and mica. Found worldwide in continental shields and mountain belts.
