igneous
Pink granite
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
AI-generated identification · may be incorrectPink to reddish, speckled, and granular with interlocking crystals; typical Mohs hardness is about 6–7. Quartz has no cleavage, while feldspars show two cleavages; the specimen appears massive and nonmetallic.
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Physical properties
Pink to reddish, speckled, and granular with interlocking crystals; typical Mohs hardness is about 6–7. Quartz has no cleavage, while feldspars show two cleavages; the specimen appears massive and nonmetallic.
Formation & geological history
Formed as silica-rich magma cooled slowly underground, allowing visible crystals to grow. Granite occurs across a wide range of geological ages; the specimen’s age cannot be determined from the image.
Uses & applications
Used for building stone, paving, countertops, monuments, and landscaping; attractive pieces may be collected as specimens.
Geological facts
Its pink color commonly comes from potassium feldspar, while quartz and dark mica or amphibole create the contrasting grains.
Field identification & locations
Identify it by its interlocking pink feldspar, glassy gray quartz, and scattered dark minerals; it is common in continental crust and exposed plutons worldwide. A hand lens helps distinguish its mineral grains.
