Pink Granite

Physical Properties

Hardness: 6-7 on Mohs scale; Color: Pink, reddish-pink with speckles of grey and black; Luster: Dull to vitreous; Crystal Structure: Phaneritic (coarse-grained); Cleavage: Indistinct; Specific Gravity: 2.63-2.75

Formation & Geological History

Formed through the slow crystallization of magma below Earth's surface (intrusive). The pink color is derived from an abundance of potassium feldspar (orthoclase). These rocks can date back billions of years depending on the craton they are found in.

Uses & Applications

Extensively used in construction for countertops, floor tiles, paving stone, monuments, and as crushed stone for road base.

Geological Facts

Granite makes up a large portion of the Earth's continental crust. Mount Rushmore is carved into a granite batholith. The pink variety is particularly prized for aesthetic architectural finishes.

Field Identification & Locations

Identify by its 'salt and pepper' crystalline texture and the distinct peach-to-pink color of the feldspar crystals. It is found globally in mountainous regions and continental shields like the Canadian Shield.

Identified on: 5/11/2026

Mode: Standard