igneous
Pink Granite
Granite (enriched in Potassium Feldspar / Orthoclase)
Hardness: 6-7 on Mohs scale; Color: Pinkish-red, white, gray, and dark specks; Luster: Vitreous to dull; Texture: Phaneritic (coarse-grained, visible interlocking crystals); Specific Gravity: ~2.65-2.75
- Hardness
- 6-7 on Mohs scale
- Color
- Pinkish-red, white, gray, and dark specks
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Pinkish-red, white, gray, and dark specks; Luster: Vitreous to dull; Texture: Phaneritic (coarse-grained, visible interlocking crystals); Specific Gravity: ~2.65-2.75
Formation & geological history
Formed through the slow crystallization of silica-rich magma deep beneath the Earth's surface (intrusive igneous). The strong pink hue is caused by an abundance of potassium feldspar (orthoclase).
Uses & applications
Extensively used in construction, countertops, monuments, floor tiles, and as decorative gravel or river rock.
Geological facts
Granite makes up a large portion of the Earth's continental crust. Pink granite is famous in regions like the Llano Uplift in Texas and parts of Canada and Scandinavia.
Field identification & locations
Identified in the field by its coarse-grained interlocking matrix containing distinct pink/red feldspar, translucent quartz, and dark biotite or hornblende minerals. Very common in glacial till, riverbeds, and mountainous regions.
