
igneous
Pink Granite
Plutonic Igneous Rock (Granite)
Hardness 6-7 on Mohs scale; reddish-pink to salmon-pink color due to potassium feldspar (orthoclase), intermixed with quartz (glassy grayish white) and minor dark biotite or hornblende; phaneritic (coarse-grained) texture with a vitreous to dull luster.
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Physical properties
Hardness 6-7 on Mohs scale; reddish-pink to salmon-pink color due to potassium feldspar (orthoclase), intermixed with quartz (glassy grayish white) and minor dark biotite or hornblende; phaneritic (coarse-grained) texture with a vitreous to dull luster.
Formation & geological history
Formed through the slow crystallization of silica-rich felsic magma deep beneath the Earth's surface (intrusive igneous activity). Found in continental crust and mountain belt cores worldwide.
Uses & applications
Extensive use as dimension stone, building facades, kitchen countertops, monuments, paving, and crushed stone for construction aggregates.
Geological facts
The distinctive pink color comes from abundance of orthoclase potassium feldspar. Granite is one of the most common rocks forming Earth's continental crust.
Field identification & locations
Identified by its interlocking coarse mineral grains dominated by pink feldspar and translucent quartz. Common in batholiths and exposed shield regions; of low monetary value as a raw specimen ($1-$10) unless cut and polished into functional slabs.