igneous
Weathered pink granite or granitic rock
Granite; chiefly quartz (SiO₂), feldspar, and mica/amphibole
AI-generated identification · may be incorrectCoarse-grained, pink-tan, with dark gray mineral patches and a dull weathered luster; likely Mohs hardness 6–7, massive structure, and no obvious cleavage as a whole rock. The image is insufficient to distinguish granite from pink granodiorite or pegmatitic material confidently.
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Physical properties
Coarse-grained, pink-tan, with dark gray mineral patches and a dull weathered luster; likely Mohs hardness 6–7, massive structure, and no obvious cleavage as a whole rock. The image is insufficient to distinguish granite from pink granodiorite or pegmatitic material confidently.
Formation & geological history
Formed when silica-rich magma cooled slowly deep in the crust, producing interlocking crystals; commonly Precambrian to Phanerozoic in age, depending on locality. Surface weathering has rounded and stained the specimen.
Uses & applications
Used extensively as dimension stone, countertops, monuments, aggregate, and landscaping rock; attractive pieces may be collected but are generally low-value.
Geological facts
The pink color commonly comes from potassium feldspar, while dark patches may be biotite, hornblende, or weathering-stained inclusions.
Field identification & locations
Identify it by visible interlocking quartz/feldspar grains, pink potassium feldspar, and dark mafic minerals; a glassy fracture or strong fizz would suggest another material. Common worldwide in continental mountain belts and exposed batholiths.
