igneous
Pink Granite
Phaneritic Igneous Rock (high K-feldspar content)
Hardness: 6-7 Mohs; Color: Pink, reddish-pink, with gray and white speckles; Luster: Dull (weathered) to Vitreous (fresh surfaces); Crystal structure: Phaneritic (coarse-grained); Specific Gravity: 2.63-2.75
- Hardness
- 6-7 Mohs
- Color
- Pink, reddish-pink, with gray and white speckles
- Luster
- Dull (weathered) to Vitreous (fresh surfaces)
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Physical properties
Hardness: 6-7 Mohs; Color: Pink, reddish-pink, with gray and white speckles; Luster: Dull (weathered) to Vitreous (fresh surfaces); Crystal structure: Phaneritic (coarse-grained); Specific Gravity: 2.63-2.75
Formation & geological history
Formed by the slow crystallization of magma below Earth's surface. This specimen appears water-worn, likely tumbled in a river or glacial environment. Geological age varies by location, often Precambrian or Paleozoic.
Uses & applications
Used extensively in construction for countertops, floor tiles, and monuments. Common in landscaping and as a lapidary material for polished stones.
Geological facts
The pink color is caused by an abundance of potassium feldspar (orthoclase). Granite makes up much of the continuous continental crust and is exceptionally durable against erosion.
Field identification & locations
Identify by its interlocking crystalline texture and lack of layering. Found globally in mountainous regions and glacial till. Highly valued for its resistance to weathering.
