igneous
Pink Granite
Phaneritic Plutonic Rock (Granite with K-Feldspar)
Hardness: 6-7 Mohs; Color: Pink, white, grey, and black; Luster: Vitreous to dull; Crystal structure: Phaneritic (large, visible crystals); Specific gravity: 2.63-2.75.
- Hardness
- 6-7 Mohs
- Color
- Pink, white, grey, and black
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 Mohs; Color: Pink, white, grey, and black; Luster: Vitreous to dull; Crystal structure: Phaneritic (large, visible crystals); Specific gravity: 2.63-2.75.
Formation & geological history
Formed from the slow cooling of magma deep beneath the Earth's surface (intrusive). The pink color is caused by an abundance of potassium feldspar (orthoclase).
Uses & applications
Extensively used in construction for countertops, floor tiles, paving stones, and monuments due to its durability and aesthetic appeal.
Geological facts
Pink granite is the state rock of New Hampshire. It is one of the hardest natural stones used in architecture and can withstand thousands of years of weathering.
Field identification & locations
Identify by its 'salt and pepper' appearance with distinct pink/salmon hues. Look for interlocking crystals of quartz, feldspar, and biotite. Common in continental crust and mountain ranges.
