igneous
Pink granite fragment
Granite; primarily quartz, feldspar, and mica
AI-generated identification · may be incorrectCoarse-grained, pink-and-gray mottled appearance with glassy quartz and dark mica; Mohs hardness about 6–7, nonfoliated, with irregular fracture and low porosity. The tiny size and lighting prevent confident mineral-level identification.
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Physical properties
Coarse-grained, pink-and-gray mottled appearance with glassy quartz and dark mica; Mohs hardness about 6–7, nonfoliated, with irregular fracture and low porosity. The tiny size and lighting prevent confident mineral-level identification.
Formation & geological history
An intrusive igneous rock crystallized slowly from silica-rich magma deep in continental crust, commonly during Precambrian to Phanerozoic mountain-building events.
Uses & applications
Used widely as dimension stone, countertops, monuments, paving, aggregate, and landscaping material; this small fragment has negligible commercial value.
Geological facts
Pink coloration commonly comes from potassium feldspar, while black specks are biotite or hornblende. Granite is one of Earth’s most abundant continental crustal rocks.
Field identification & locations
Identify it by visible interlocking crystals, pink feldspar, gray quartz, and dark mica; a hand lens and streak or hardness tests help confirm it. Common worldwide, especially in exposed continental batholiths.
