igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Hardness: 6-7 Mohs; Color: Pink, orange-red, white, and speckles of gray/black; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained) with visible crystals of orthoclase feldspar, quartz, and mica.
- Hardness
- 6-7 Mohs
- Color
- Pink, orange-red, white, and speckles of gray/black
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 Mohs; Color: Pink, orange-red, white, and speckles of gray/black; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained) with visible crystals of orthoclase feldspar, quartz, and mica.
Formation & geological history
Formed from the slow cooling of silica-rich magma deep within the Earth's crust (plutonic). This specimen appears water-worn, likely tumbled in a river or glacial environment after being eroded from a larger batholith.
Uses & applications
Used extensively in construction for countertops, floor tiles, and monuments. High-quality decorative specimens are used in landscaping and as architectural stone.
Geological facts
Pink granite gets its distinctive color from an abundance of potassium feldspar (orthoclase). It is one of the most common rocks in the Earth's continental crust.
Field identification & locations
Identify by its phaneritic (visible) crystalline texture and the combination of pink feldspar and translucent quartz crystals. Common in mountain ranges and glacial till across North America and Europe.
