igneous
Pink Granite
Granite (Phaneritic intrusive igneous rock dominated by Quartz and K-Feldspar)
Hardness: 6-7 on Mohs scale; Color: Pink, salmon, white, and grey; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained) with visible crystals; Specific gravity: 2.63 - 2.75.
- Hardness
- 6-7 on Mohs scale
- Color
- Pink, salmon, white, and grey
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Pink, salmon, white, and grey; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained) with visible crystals; Specific gravity: 2.63 - 2.75.
Formation & geological history
Formed from the slow crystallization of magma below the Earth's surface in continental crust environments. This specimen specifically shows high levels of Potassium Feldspar (Orthoclase), which provides the pink hue.
Uses & applications
Widely used in construction, countertops, monuments, flooring, and as crushed stone for aggregate.
Geological facts
Granite is the most common rock in Earth's continental crust. The pink color is usually due to an abundance of potassium feldspar rather than impurities.
Field identification & locations
Identify in the field by its 'salt and pepper' appearance (though pink here), visible interlocking crystals, and extreme hardness (it will easily scratch glass). Common in mountainous or eroded shield areas.
