igneous
Pink granite
Granite, a coarse-grained quartz–feldspar plutonic rock
AI-generated identification · may be incorrectPink and gray, speckled with dark minerals; interlocking visible crystals, typically quartz, feldspar, and biotite or hornblende. Hardness is about 6–7 Mohs; generally massive, with no cleavage as a rock.
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Physical properties
Pink and gray, speckled with dark minerals; interlocking visible crystals, typically quartz, feldspar, and biotite or hornblende. Hardness is about 6–7 Mohs; generally massive, with no cleavage as a rock.
Formation & geological history
Forms when silica-rich magma cools slowly underground, allowing large crystals to grow. Granite bodies occur across a wide range of geological ages.
Uses & applications
Used for countertops, building stone, monuments, paving, and decorative aggregate; attractive specimens are collected.
Geological facts
The pink color commonly comes from potassium feldspar, while dark flecks are often biotite or hornblende.
Field identification & locations
Identify it by coarse, interlocking crystals and a mix of pink feldspar, glassy quartz, and dark minerals; common in continental mountain belts and exposed plutons worldwide.
