
igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, colors ranging from pink to gray depending on feldspar and quartz content, dull to vitreous luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, colors ranging from pink to gray depending on feldspar and quartz content, dull to vitreous luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction, monument building, countertops, and architectural facing.
Geological facts
Granite is a major component of the continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its visibly speckled, interlocking mineral grains of quartz, feldspar, and mica. Common globally, especially in mountainous regions and continental shields. Given the coordinates in central Chile, granite and associated intrusive rocks are very geologically plausible due to the Andean batholiths.