igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Quartz-Feldspar-Mica)
Hardness: 6-7 on Mohs scale. Color: Pink, reddish-orange, white, and black speckles. Luster: Vitreous to dull. Crystal Structure: Phaneritic (coarse-grained). Specific Gravity: 2.63 to 2.75.
- Hardness
- 6-7 on Mohs scale
- Color
- Pink, reddish-orange, white, and black speckles
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Pink, reddish-orange, white, and black speckles. Luster: Vitreous to dull. Crystal Structure: Phaneritic (coarse-grained). Specific Gravity: 2.63 to 2.75.
Formation & geological history
Formed from the slow cooling and crystallization of molten magma deep beneath the Earth's surface (plutonic formation). Found in continental crust, often in mountain ranges or cratons, dating back hundreds of millions to billions of years.
Uses & applications
Widely used in construction for countertops, floor tiles, monuments, and as crushed stone for road base. Also popular as decorative landscaping rock.
Geological facts
The pink color is caused by an abundance of potassium feldspar (orthoclase). Granite makes up a large part of the Earth's continental crust and is one of the hardest natural stones available.
Field identification & locations
Identify by its interlocking 'salt and pepper' crystalline texture and distinct pink hue. Common in regions with exposed batholiths like the Scottish Highlands, the Sierra Nevada, or the Canadian Shield.
