igneous
Granite
Intrusive Igneous Rock (Felsic)
Hardness of 6-7 on the Mohs scale, predominantly light-colored (white, pink, gray, or speckled green/black), glassy to dull luster, granular phaneritic crystal structure, poor cleavage overall, specific gravity around 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, predominantly light-colored (white, pink, gray, or speckled green/black), glassy to dull luster, granular phaneritic crystal structure, poor cleavage overall, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma rich in silica and alkali metal oxides beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction, monument building, countertops, flooring, and architectural facades due to its durability and aesthetic appeal.
Geological facts
Granite is the most common rock of the Earth's continental crust and forms the core of many major mountain ranges. The specimen shown features distinctive greenish mineral inclusions, likely epidote or green amphibole.
Field identification & locations
Easily identified by its distinct interlocking mineral grains (quartz, feldspar, and mica). Found globally in continental shields and intrusive mountain roots. Plausible in various tectonic settings worldwide.
