igneous

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)

Hardness: 6-7 on Mohs scale; Color: Pinkish-red to salmon (due to Orthoclase feldspar); Luster: Dull to vitreous; Crystal structure: Phaneritic (visible crystals); Cleavage: Perfect in two directions for feldspar components.

Hardness: 6-7 on Mohs scale
Color: Pinkish-red to salmon (due to Orthoclase feldspar)
Luster: Dull to vitreous

Identified May 3, 2026More igneous →

Identify your own rocks.

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

App Store Google Play

Physical properties

Formation & geological history

Formed through the slow crystallization of magma below Earth's surface (intrusive). This specimen likely dates from various Precambrian or Paleozoic orogenic events depending on the specific source site.

Uses & applications

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

Geological facts

The pink color is caused by an abundance of potassium feldspar (orthoclase). Granite makes up a large portion of the Earth's continental crust and is one of the hardest natural stones used by humans.

Field identification & locations

Identify by its interlocking crystalline texture (grains visible to the naked eye) and the presence of pink/orange mineral grains mixed with clear/grey quartz. Found globally in continental shields and mountain ranges.

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

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

mineral

Blue Apatite

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

mineral

Magnetite

Magnetite (Fe3O4)

mineral