igneous
Granite Pebble
Intrusive Igneous Rock
Hardness of 6-7 on the Mohs scale, predominantly pinkish-brown and gray color, vitreous to dull luster, phaneritic crystal structure with visible interlocking mineral grains, specific gravity of 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, predominantly pinkish-brown and gray color, vitreous to dull luster, phaneritic crystal structure with visible interlocking mineral grains, specific gravity of 2.65-2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma deep beneath the Earth's crust, commonly dating from Precambrian to Cenozoic eras.
Uses & applications
Used in construction, monuments, paving stones, countertops, and decorative landscaping.
Geological facts
Granite is the most common igneous rock in the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its speckled, interlocking crystal grains of quartz, feldspar, and mica. Found worldwide in mountainous regions and glacial outwash.
