igneous
Granite Pebble
Phaneritic intrusive igneous rock
Hardness of 6-7 on the Mohs scale, composed primarily of quartz, feldspar, and mica. Shows a speckled, phaneritic texture with pink, white, and black mineral grains. Luster is vitreous to dull.
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Physical properties
Hardness of 6-7 on the Mohs scale, composed primarily of quartz, feldspar, and mica. Shows a speckled, phaneritic texture with pink, white, and black mineral grains. Luster is vitreous to dull.
Formation & geological history
Formed from the slow cooling and crystallization of magma beneath the Earth's surface over millions of years, followed by weathering, erosion, and water transport into a rounded pebble.
Uses & applications
Commonly used in construction, aggregate, landscaping, countertops, and monumental architecture.
Geological facts
Granite is the most common rock type in the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Found worldwide in riverbeds, glacial deposits, and beaches. Easily identified by its interlocking, visible grains of light and dark minerals.
