igneous
Pink Granite
Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)
Hardness: 6-7 on Mohs scale. Color: Pinkish-red due to high potassium feldspar content, with black biotite and translucent quartz inclusions. Luster: Vitreous to dull. Structure: Phaneritic (coarse-grained).
- Hardness
- 6-7 on Mohs scale
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Pinkish-red due to high potassium feldspar content, with black biotite and translucent quartz inclusions. Luster: Vitreous to dull. Structure: Phaneritic (coarse-grained).
Formation & geological history
Formed by the slow crystallization of magma below Earth's surface. High silica content and significant K-feldspar give it the characteristic pink hue. Most specimens range from hundreds of millions to billions of years old.
Uses & applications
Extensively used in construction for countertops, floor tiles, and monuments. Also high value as a decorative stone in landscaping and popular for amateur rock collecting.
Geological facts
Granite makes up a large portion of the Earth's continental crust. The pink color is specifically indicative of orthoclase feldspar. It is one of the hardest and most durable common natural stones.
Field identification & locations
Identified by its 'salt and pepper' appearance with distinct pinkish tones and visible interlocking crystals. Found globally in mountainous regions and continental shields. Collectors look for pieces with large, well-defined phenocrysts.
