Rock Identifier
Granite (Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase) — igneous
igneous

Granite

Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase

AI-generated identification · may be incorrect

Hardness of 6-7 on the Mohs scale, coarse-grained phaneritic texture, and colors ranging from pink to gray depending on feldspar content. It exhibits a vitreous to dull luster with no prominent cleavage planes.

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Physical properties

Hardness of 6-7 on the Mohs scale, coarse-grained phaneritic texture, and colors ranging from pink to gray depending on feldspar content. It exhibits a vitreous to dull luster with no prominent cleavage planes.

Formation & geological history

Formed through the slow, subterranean cooling and crystallization of silica-rich magma over millions of years.

Uses & applications

Extensively used in construction, architectural building facades, countertops, and monumental sculpture.

Geological facts

Granite is the most common rock type in Earth's continental crust and forms the core of many major mountain ranges.

Field identification & locations

Easily identified by its interlocking, visible mineral crystals of quartz and pink or white feldspar. Found globally in continental shields and intrusive mountain belts.