Rock Identifier
Granite (Intrusive Igneous Rock) — igneous
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.

Identified More igneous
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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.