igneous
Pink granite fragment
Granite, chiefly quartz, feldspar, and mica
AI-generated identification · may be incorrectCoarse-grained, pink-and-gray crystalline texture with vitreous quartz and pink potassium feldspar; feldspar hardness ~6, quartz ~7, no dominant cleavage, specific gravity about 2.6–2.7.
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Physical properties
Coarse-grained, pink-and-gray crystalline texture with vitreous quartz and pink potassium feldspar; feldspar hardness ~6, quartz ~7, no dominant cleavage, specific gravity about 2.6–2.7.
Formation & geological history
An intrusive igneous rock formed by slow cooling of silica-rich magma deep within continental crust, commonly during Precambrian to Phanerozoic plutonic events.
Uses & applications
Used widely as dimension stone, countertops, monuments, paving, and aggregate; small fragments are inexpensive geological specimens.
Geological facts
The pink color typically comes from potassium feldspar, while dark flecks are usually biotite or amphibole. The image is somewhat blurred, so exact identification is provisional.
Field identification & locations
Identify granite by visible interlocking crystals and mixed pink, white, gray, and black grains; common sources include India, Brazil, Canada, Scandinavia, and the United States.
