Pink Granite

Physical Properties

Hardness: 6-7 on Mohs scale; Color: Pink, salmon, or reddish hues due to Potassium Feldspar (Orthoclase), mottled with grey quartz and black mica; Luster: Dull to vitreous; Crystal Structure: Phaneritic (coarse-grained, visible crystals); Specific Gravity: 2.63 - 2.75.

Formation & Geological History

Formed by the slow crystallization of magma below Earth's surface. This intrusive process allows large, distinct mineral crystals to grow. Most granites date from the Precambrian or Paleozoic eras.

Uses & Applications

Extensively used in construction for countertops, floor tiles, paving stones, curbing, and monuments. Also used as crushed stone/aggregate for road beds.

Geological Facts

Granite is the most common rock found in 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 its 'salt and pepper' or mottled appearance with visible interlocking crystals of pink feldspar, clear-to-grey quartz, and dark biotite or hornblende. Commonly found in batholiths and core sections of mountain ranges.

Identified on: 4/20/2026

Mode: Standard