igneous
Granite Pebble
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale; composed primarily of quartz, feldspar, and mica; colors range from pink to gray with dark mineral inclusions; vitreous to dull luster.
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Physical properties
Hardness of 6 on the Mohs scale; composed primarily of quartz, feldspar, and mica; colors range from pink to gray with dark mineral inclusions; vitreous to dull luster.
Formation & geological history
Formed from the slow cooling and solidification of magma deep beneath the Earth's surface over millions of years.
Uses & applications
Used in construction, monuments, countertops, and as decorative landscape stones.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its interlocking, visible crystal grains of quartz and feldspar; commonly found in mountainous regions and riverbeds.
