igneous
Pink Granite
Granite (Phaneritic Igneous Rock, primarily SiO2)
Hardness: 6-7 Mohs; Color: Pink, red, white, and black mottled; Luster: Dull to vitreous; Structure: Phaneritic (coarse-grained) crystalline; Specific Gravity: 2.63-2.75
- Hardness
- 6-7 Mohs
- Color
- Pink, red, white, and black mottled
- Luster
- Dull to vitreous
Identified More igneous →
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Physical properties
Hardness: 6-7 Mohs; Color: Pink, red, white, and black mottled; Luster: Dull to vitreous; Structure: Phaneritic (coarse-grained) crystalline; Specific Gravity: 2.63-2.75
Formation & geological history
Formed from the slow cooling of silica-rich magma deep underground. Often intrusive within continental crust, dating from various eras such as the Precambrian or Paleozoic.
Uses & applications
Extensively used in construction for countertops, floor tiles, paving stones, and memorial monuments due to its durability and aesthetic appeal.
Geological facts
The pink/red color in this specimen is caused by a high concentration of potassium feldspar (orthoclase). Granite makes up the majority of the Earth's continental crust.
Field identification & locations
Identify by its interlocking crystalline texture (salt and pepper appearance) and high hardness (cannot be scratched by a steel blade). Commonly found in mountain ranges and glacial deposits.
