igneous
Granite
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica or amphibole.
AI-generated identification · may be incorrectVisible salmon-pink potassium feldspar, gray quartz, and dark biotite/amphibole; crystalline, speckled texture with no layering. Typical hardness is about 6–7 Mohs; mineral grains have varied lusters and cleavages.
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Physical properties
Visible salmon-pink potassium feldspar, gray quartz, and dark biotite/amphibole; crystalline, speckled texture with no layering. Typical hardness is about 6–7 Mohs; mineral grains have varied lusters and cleavages.
Formation & geological history
Formed as silica-rich magma cooled slowly underground, allowing large crystals to grow. Such rocks occur across many geological ages, commonly in continental crust and mountain belts.
Uses & applications
Used for building stone, countertops, monuments, paving, and decorative landscaping; attractive specimens are also collected.
Geological facts
The pink grains are likely feldspar, while the dark minerals provide the contrast characteristic of many granites.
Field identification & locations
Identify by its interlocking, visible grains of light quartz/feldspar and darker minerals; it is common in continental plutons worldwide. The image supports a granite identification, though exact mineral proportions require examination.
