igneous

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock

Hardness: 6-7 Mohs; Color: Pink, reddish-orange, with gray and black specks; Luster: Dull to vitreous; Crystal Structure: Phaneritic (visible crystals); Cleavage: Perfect on feldspar grains; Specific Gravity: 2.63-2.75

Hardness: 6-7 Mohs
Color: Pink, reddish-orange, with gray and black specks
Luster: Dull to vitreous

Identified May 17, 2026More igneous →

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Physical properties

Formation & geological history

Formed by the slow crystallization of silica-rich magma below Earth's surface. The pink color comes from an abundance of potassium feldspar (orthoclase). These rocks are often billions of years old, forming the base of continental crust.

Uses & applications

Extensively used in construction for countertops, floor tiles, monuments, paving stones, and as an architectural decorative stone.

Geological facts

Granite is one of the hardest and most durable natural stones, which is why it was used to build the Great Pyramid of Giza's Chambers. The color variation is a direct result of the specific mineral chemistry during cooling.

Field identification & locations

Identified by its 'salt and pepper' crystalline texture and pinkish hue. Common in mountain ranges and glacial till. Collectors look for large, well-defined phenocrysts of feldspar or quartz.

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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)

mineral

Magnetite

Magnetite (Fe3O4)

mineral