igneous
Pink Granite
Granite (Phaneritic intrusive igneous rock)
Hardness: 6-7 on Mohs scale; Color: Pink, reddish-orange, grey, and black; Luster: Dull to vitreous; Structure: Phaneritic (coarse-grained) crystalline; Density: 2.63 to 2.75 g/cm3.
- Hardness
- 6-7 on Mohs scale
- Color
- Pink, reddish-orange, grey, and black
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Pink, reddish-orange, grey, and black; Luster: Dull to vitreous; Structure: Phaneritic (coarse-grained) crystalline; Density: 2.63 to 2.75 g/cm3.
Formation & geological history
Formed from the slow crystallization of silica-rich magma below Earth's surface. This specimen contains high concentrations of potassium feldspar (orthoclase), giving it the pink hue. Geological age can range from billions of years (Precambrian) to more recent Cenozoic formations.
Uses & applications
Predominantly used in construction for countertops, floor tiles, paving stones, and monuments due to its durability and aesthetic appeal.
Geological facts
Granite makes up a large portion of the Earth's continental crust. El Capitan in Yosemite National Park is one of the world's most famous granite monoliths.
Field identification & locations
Identify in the field by looking for a 'salt and pepper' appearance with clearly visible interlocking crystals of quartz (clear/grey), feldspar (pink/white), and mica (black). Commonly found in mountain ranges and glacial till.
