igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Hardness: 6-7 Mohs; Color: Pink, orange-red, white, and speckles of gray/black; Luster: Vitreous to dull; Crystal structure: Phaneritic (coarse-grained) with visible crystals of orthoclase feldspar, quartz, and mica.

Hardness: 6-7 Mohs
Color: Pink, orange-red, white, and speckles of gray/black
Luster: Vitreous to dull

Identified May 24, 2026More igneous →

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Physical properties

Formation & geological history

Formed from the slow cooling of silica-rich magma deep within the Earth's crust (plutonic). This specimen appears water-worn, likely tumbled in a river or glacial environment after being eroded from a larger batholith.

Uses & applications

Used extensively in construction for countertops, floor tiles, and monuments. High-quality decorative specimens are used in landscaping and as architectural stone.

Geological facts

Pink granite gets its distinctive color from an abundance of potassium feldspar (orthoclase). It is one of the most common rocks in the Earth's continental crust.

Field identification & locations

Identify by its phaneritic (visible) crystalline texture and the combination of pink feldspar and translucent quartz crystals. Common in mountain ranges and glacial till across North America and Europe.

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Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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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