igneous
Pink Granite
Granite (Alkali-feldspar granite)
Hardness: 6-7 (Mohs); Color: Pink, reddish, white, and grey; Luster: Dull to Vitreous (on crystal faces); Crystal structure: Phaneritic (coarse-grained); Cleavage: Indistinct; Specific Gravity: 2.63-2.75
- Hardness
- 6-7 (Mohs)
- Color
- Pink, reddish, white, and grey
- Luster
- Dull to Vitreous (on crystal faces)
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Physical properties
Hardness: 6-7 (Mohs); Color: Pink, reddish, white, and grey; Luster: Dull to Vitreous (on crystal faces); Crystal structure: Phaneritic (coarse-grained); Cleavage: Indistinct; Specific Gravity: 2.63-2.75
Formation & geological history
Formed through the slow crystallization of magma below Earth's surface (intrusive). Composed mainly of potassium feldspar, quartz, and minor mica or amphibole. Often found in continental crust and mountain ranges.
Uses & applications
Widely used in construction, countertops, floor tiles, monuments, and as ornamental stone or road aggregate.
Geological facts
The pink color is specifically due to a high concentration of potassium feldspar (orthoclase). Granite is one of the oldest and most abundant rocks on Earth's continental crust.
Field identification & locations
Identify by the interlocking crystalline texture and the presence of visible pink feldspar and translucent quartz grains. Found in plutonic formations globally.
