igneous
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Hardness: 6-7 Mohs; Color: Pink, reddish-orange, with gray and black specks; Luster: Dull to vitreous; Crystal Structure: Phaneritic (visible crystals); Cleavage: Perfect on feldspar grains; Specific Gravity: 2.63-2.75
- Hardness
- 6-7 Mohs
- Color
- Pink, reddish-orange, with gray and black specks
- Luster
- Dull to vitreous
Identified More igneous →
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Physical properties
Hardness: 6-7 Mohs; Color: Pink, reddish-orange, with gray and black specks; Luster: Dull to vitreous; Crystal Structure: Phaneritic (visible crystals); Cleavage: Perfect on feldspar grains; Specific Gravity: 2.63-2.75
Formation & geological history
Formed by the slow crystallization of silica-rich magma below Earth's surface. The pink color comes from an abundance of potassium feldspar (orthoclase). These rocks are often billions of years old, forming the base of continental crust.
Uses & applications
Extensively used in construction for countertops, floor tiles, monuments, paving stones, and as an architectural decorative stone.
Geological facts
Granite is one of the hardest and most durable natural stones, which is why it was used to build the Great Pyramid of Giza's Chambers. The color variation is a direct result of the specific mineral chemistry during cooling.
Field identification & locations
Identified by its 'salt and pepper' crystalline texture and pinkish hue. Common in mountain ranges and glacial till. Collectors look for large, well-defined phenocrysts of feldspar or quartz.
