igneous

Pink Granite

Phaneritic Felsic Igneous Plutonic Rock

Hardness: 6-7 Mohs; Color: Pink, gray, and black mottled; Luster: Dull to vitreous; Crystal Structure: Coarse-grained (phaneritic); Cleavage: Perfect in feldspar grains; Specific Gravity: 2.63-2.75

Hardness: 6-7 Mohs
Color: Pink, gray, and black mottled
Luster: Dull to vitreous

Identified March 4, 2026More igneous →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6-7 Mohs; Color: Pink, gray, and black mottled; Luster: Dull to vitreous; Crystal Structure: Coarse-grained (phaneritic); Cleavage: Perfect in feldspar grains; Specific Gravity: 2.63-2.75

Formation & geological history

Formed by the slow cooling of silica-rich magma deep underground (plutonic). Components include potassium feldspar (gives pink color), quartz, and mica/hornblende. Ages vary from Precambrian to Cenozoic.

Uses & applications

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

Geological facts

The pink color is specifically due to the presence of Orthoclase (potassium feldspar). Granite makes up much of the Earth's continental crust and is one of the hardest natural stones.

Field identification & locations

Identify by its 'salt and pepper' look with pink hues. Coarse grains should be visible to the naked eye. Found globally in mountainous regions or where ancient shields are exposed.

Other igneous specimens

See all

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

mineral

Dark Igneous Rock (Likely Basalt or Diabase)

Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.

Igneous

Magnetite

Iron(II,III) oxide (Fe3O4)

mineral

Blue Apatite

Apatite (Group), Ca5(PO4)3(F,Cl,OH)

mineral

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

mineral

Magnetite

Magnetite (Fe3O4)

mineral