igneous
Pink granite or granitic pegmatite
Feldspar–quartz–mica aggregate, commonly granite (quartz + K-feldspar/plagioclase + mica)
AI-generated identification · may be incorrectCoarse-grained, pink to reddish-brown, with a dull to slightly sparkly crystalline luster; likely Mohs hardness 6–7, massive structure, and poorly visible cleavage because it is an aggregate. The image is insufficient to distinguish granite confidently from pink feldspar-rich pegmatite.
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Physical properties
Coarse-grained, pink to reddish-brown, with a dull to slightly sparkly crystalline luster; likely Mohs hardness 6–7, massive structure, and poorly visible cleavage because it is an aggregate. The image is insufficient to distinguish granite confidently from pink feldspar-rich pegmatite.
Formation & geological history
Slow cooling of silica-rich magma deep in the continental crust, typically during Precambrian to younger mountain-building events; later exposed by uplift and erosion.
Uses & applications
Used as dimension stone, countertops, monuments, aggregate, and landscaping rock; attractive pieces may be polished for decorative use.
Geological facts
The pink color generally comes from potassium feldspar, while gray or glassy grains are quartz and darker flecks are biotite or hornblende.
Field identification & locations
Look for interlocking visible grains, quartz that scratches glass, and feldspar cleavage; granite is common in continental shields and mountain belts worldwide. A fresh surface or hand lens would improve identification.
