igneous
Pink granite (likely weathered or polished fragment)
Granite; primarily quartz, potassium feldspar, plagioclase, and biotite/hornblende
AI-generated identification · may be incorrectCoarse-grained, pink to salmon with irregular pale and dark mineral patches; typically vitreous quartz and feldspar luster, massive texture, no cleavage as a rock. Mohs hardness is about 6–7; specific gravity approximately 2.63–2.75.
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Physical properties
Coarse-grained, pink to salmon with irregular pale and dark mineral patches; typically vitreous quartz and feldspar luster, massive texture, no cleavage as a rock. Mohs hardness is about 6–7; specific gravity approximately 2.63–2.75.
Formation & geological history
An intrusive felsic igneous rock formed by slow cooling of silica-rich magma deep in the crust, commonly during Precambrian to Mesozoic plutonic events. The rounded, uneven surface appears weathered or shaped.
Uses & applications
Widely used for countertops, monuments, building stone, paving, aggregates, and decorative objects; attractive pink varieties are also collected as specimens.
Geological facts
Its pink color usually comes from potassium feldspar, while dark grains are commonly biotite or amphibole. Granite commonly develops large crystals because underground cooling is slow.
Field identification & locations
Identify it by visible interlocking crystals, pink feldspar, gray translucent quartz, and scattered dark mica/amphibole; common worldwide, including India, Brazil, Canada, Scandinavia, and the United States.
