igneous
Granite
Felsic intrusive igneous rock
Hardness: 6-7 on the Mohs scale; Color: Varies widely (gray, pink, white) depending on mineral makeup; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained, visible crystals); Specific gravity: 2.65-2.75
- Hardness
- 6-7 on the Mohs scale
- Luster
- Dull to vitreous
Identified More igneous →
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Physical properties
Hardness: 6-7 on the Mohs scale; Color: Varies widely (gray, pink, white) depending on mineral makeup; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained, visible crystals); Specific gravity: 2.65-2.75
Formation & geological history
Formed from the slow cooling and crystallization of magma deep beneath the Earth's crust, typically over millions of years during mountain-building events or tectonic plate movements.
Uses & applications
Widely used in construction, monuments, flooring, countertops, and decorative stone due to its durability and aesthetic appeal.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Can be identified in the field by its interlocking, visible grains of quartz, feldspar, and mica. Found globally in continental shields and mountain ranges.
