igneous
Granite
Phaneritic Felsic Igneous Rock (Granite)
Mohs hardness: 6-7; Color: light gray/white with dark flecks; Luster: vitrious/dull; Structure: phaneritic (coarsegrained); Composition: Quartz, Feldspar, Mica.
- Hardness
- 6-7
- Color
- light gray/white with dark flecks
- Luster
- vitrious/dull
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Physical properties
Mohs hardness: 6-7; Color: light gray/white with dark flecks; Luster: vitrious/dull; Structure: phaneritic (coarsegrained); Composition: Quartz, Feldspar, Mica.
Formation & geological history
Formed from the slow crystallization of magma below the Earth's surface (plutonic formation), typically found in continental crustal plates.
Uses & applications
Extensively used in construction for countertops, floor tiles, paving stones, curbing, monuments, and as crushed stone for road base.
Geological facts
Granite makes up a large portion of the Earth's continental crust; the stone is famous for its durability and resistance to weathering over millennia.
Field identification & locations
Identify by its visible interlocking crystals of different colors. It is commonly found in mountain ranges and eroded batholiths globally.
