igneous

Pink Granite

Granite (Phaneritic felsic intrusive igneous rock)

Hardness: 6-7 Mohs; Color: Pink, fleshy-red, grey, and white mottled patterns; Luster: Dull to pearly (vitreous on fresh surfaces); Crystal Structure: Phaneritic (visible coarse-grained crystals of quartz, potassium feldspar, and plagioclase); Cleavage: Poor; Specific Gravity: 2.63 to 2.75.

Hardness: 6-7 Mohs
Color: Pink, fleshy-red, grey, and white mottled patterns
Luster: Dull to pearly (vitreous on fresh surfaces)

Identified March 23, 2026More igneous →

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Physical properties

Formation & geological history

Formed from the slow cooling of silica-rich magma deep beneath the Earth's surface (plutonic formation). The pink hue is caused by a high concentration of potassium feldspar (orthoclase). These rocks are typically from the Precambrian to Cenozoic eras.

Uses & applications

Extensively used in construction for countertops, floor tiles, and curbing. Also used for monuments, gravestones, and as decorative landscaping stone due to its durability and aesthetic appeal.

Geological facts

Granite makes up a large portion of the Earth's continental crust. The color of granite is a direct result of the mineral proportions; pink granite specifically indicates an abundance of K-feldspar over plagioclase feldspar.

Field identification & locations

Identify in the field by its 'salt and pepper' or mottled texture and the presence of visible interlocking crystals. It will not be scratched by a steel knife. Commonly found in mountainous regions or glacial till. Collectors should look for unique mineral inclusions like mica or hornblende flakes.

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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)

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Blue Apatite

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

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Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

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Magnetite

Magnetite (Fe3O4)

mineral