igneous

Pink Granite

Phaneritic Felsic Igneous Rock (composed of orthoclase, quartz, and plagioclase)

Hardness: 6-7 (Mohs); Color: Pink to reddish-orange with white/grey/black specks; Luster: Vitreous to dull; Structure: Granular/Phaneritic; Specific Gravity: 2.63-2.75.

Hardness: 6-7 (Mohs)
Color: Pink to reddish-orange with white/grey/black specks
Luster: Vitreous to dull

Identified March 2, 2026More igneous →

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Physical properties

Hardness: 6-7 (Mohs); Color: Pink to reddish-orange with white/grey/black specks; Luster: Vitreous to dull; Structure: Granular/Phaneritic; Specific Gravity: 2.63-2.75.

Formation & geological history

Formed via the slow crystallization of magma below the Earth's surface (intrusive). The pink color is derived from an abundance of potassium feldspar (orthoclase). These formations can range from millions to billions of years old.

Uses & applications

Extensively used in construction, countertops, floor tiles, paving stones, and as a decorative building material due to its durability and aesthetic appeal.

Geological facts

Granite is the primary rock type making up the Earth's continental crust. Famous landmarks like Mount Rushmore and the base of the Statue of Liberty are made of granite.

Field identification & locations

Identified by its visible interlocking crystals (granular texture) and hardness (will scratch glass). Found in mountain ranges and eroded shield areas globally. Collectors look for large mineral grains or unique color patterns.

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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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Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

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Blue Apatite

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

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Magnetite

Magnetite (Fe3O4)

mineral