igneous
Polished pink granite tile/specimen
Granite, chiefly quartz, alkali feldspar, and plagioclase with minor biotite or iron oxides
AI-generated identification · may be incorrectPink-orange, fine- to medium-grained, granular texture with a dull to lightly polished luster; hardness about 6–7 Mohs, massive with no prominent cleavage, and specific gravity roughly 2.6–2.7. The small rectangular shape indicates it has been cut and polished.
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Physical properties
Pink-orange, fine- to medium-grained, granular texture with a dull to lightly polished luster; hardness about 6–7 Mohs, massive with no prominent cleavage, and specific gravity roughly 2.6–2.7. The small rectangular shape indicates it has been cut and polished.
Formation & geological history
Granite is a slowly cooled intrusive igneous rock formed when silica-rich magma crystallizes deep in Earth’s crust, commonly during Precambrian to Phanerozoic mountain-building events. The specimen’s exact age and locality cannot be determined from the image.
Uses & applications
Widely used for countertops, building facades, flooring, monuments, tiles, and decorative objects; small polished pieces are inexpensive collectors’ or educational specimens.
Geological facts
The pink color commonly comes from potassium feldspar, while darker flecks may be biotite or hornblende and translucent grains may be quartz. Granite’s visible interlocking crystals reflect slow underground cooling.
Field identification & locations
Identify it by its speckled interlocking crystals, pink feldspar, gray/translucent quartz, and inability to scratch easily with a steel blade. Common sources include India, Brazil, China, Finland, and the United States.
