Pink Granite

Physical Properties

Hardness: 6-7 on Mohs scale; Color: Pink, salmon, or reddish with flecks of white, gray, and black; Luster: Dull to vitreous; Crystal Structure: Phaneritic (coarse-grained); Specific Gravity: 2.63-2.75

Formation & Geological History

Formed by the slow crystallization of magma below Earth's surface. The pink color is primarily due to an abundance of potassium feldspar (orthoclase). These rocks are often found in batholiths or mountain ranges and can be billions of years old.

Uses & Applications

Widely used for construction, countertops, monuments, curbing, and decorative landscaping stone.

Geological Facts

Granite makes up a large portion of the Earth's continental crust. Mount Rushmore is carved into a granite batholith. Its resistance to acid rain and high durability makes it ideal for outdoor memorials.

Field Identification & Locations

Identified in the field by its visible interlocking crystals of pink feldspar, translucent quartz, and dark minerals like mica or hornblende. Commonly found in shield areas and mountainous regions globally.

Identified on: 5/15/2026

Mode: Standard