igneous / metamorphic

Pink Granite / Gneiss

Felsic Plutonic Rock (Granite) with Gneissic banding

AI-generated identification · may be incorrect

Hardness: 6-7 (Mohs scale); Color: Pink, orange, gray, and black; Luster: Dull to vitreous; Structure: Phaneritic (large crystals) with evidence of foliation; Specific Gravity: 2.6-2.7

Hardness: 6-7 (Mohs scale)
Color: Pink, orange, gray, and black
Luster: Dull to vitreous

Identified April 4, 2026More igneous / metamorphic →

Explore Pink Granite / Gneiss in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness: 6-7 (Mohs scale); Color: Pink, orange, gray, and black; Luster: Dull to vitreous; Structure: Phaneritic (large crystals) with evidence of foliation; Specific Gravity: 2.6-2.7

Formation & geological history

Formed from the slow cooling of silica-rich magma beneath the Earth's surface (igneous). The visible banding suggests it may have undergone high-grade metamorphism (Gneiss) or contains pegmatitic intrusions.

Uses & applications

Used in construction as dimension stone, countertops, paving, and decorative garden rock. Larger boulders are used for landscaping and monuments.

Geological facts

Granite makes up the majority of the Earth's continental crust. The pink color is specifically due to a high concentration of potassium feldspar (orthoclase).

Field identification & locations

Identify by its interlocking 'salt and pepper' crystals and pink feldspar. It is commonly found in old mountain belts and continental shields. It is highly resistant to weathering.