igneous
Granite
Felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, composed of quartz, alkali feldspar, and plagioclase. Displays a phaneritic, coarse-grained texture with pink, white, and gray speckled coloration and a sub-vitreous luster.
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Physical properties
Hardness of 6-7 on Mohs scale, composed of quartz, alkali feldspar, and plagioclase. Displays a phaneritic, coarse-grained texture with pink, white, and gray speckled coloration and a sub-vitreous luster.
Formation & geological history
Formed from the slow cooling and solidification of magma rich in silica and alkali metal oxides deep beneath the Earth's surface over millions of years.
Uses & applications
Extensively used in construction, monument building, countertops, and architectural facing stone.
Geological facts
Granite is the most common rock of the 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 feldspar. Highly abundant globally, including common occurrences in the East African Orogen.
