igneous
Pink Granite
Granite (Phaneritic intrusive igneous rock)
Hardness: 6 to 7 on the Mohs scale; Color: Pink, reddish-pink, with grey and black inclusions; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75.
- Hardness
- 6 to 7 on the Mohs scale
- Color
- Pink, reddish-pink, with grey and black inclusions
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6 to 7 on the Mohs scale; Color: Pink, reddish-pink, with grey and black inclusions; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75.
Formation & geological history
Formed through the slow cooling and crystallization of molten magma deep beneath the Earth's surface (plutonic formation). It is typically billions to millions of years old, often associated with continental crust formation.
Uses & applications
Extensively used in construction (countertops, floor tiles, paving), monuments, and as crushed stone for road aggregate. Polished specimens are used in decorative architecture.
Geological facts
The pink color is caused by an abundance of potassium feldspar (orthoclase). Granite makes up a large portion of the Earth's continental crust and is one of the hardest natural substances.
Field identification & locations
Look for a interlocking 'salt and pepper' texture with visible pink crystals of feldspar, clear to grey quartz, and dark specks of mica or hornblende. It is found in mountain ranges and glacial deposits.
