igneous
Granite Pebble
Intrusive igneous rock primarily composed of quartz, alkali feldspar, and plagioclase
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, granular texture, dull to vitreous luster, and variable colors including pink, white, and gray.
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Physical properties
Hardness of 6-7 on the Mohs scale, granular texture, dull to vitreous luster, and variable colors including pink, white, and gray.
Formation & geological history
Formed through the slow cooling and crystallization of magma beneath the Earth's surface over millions of years.
Uses & applications
Used widely in construction, dimension stone, countertops, and landscaping aggregates.
Geological facts
Granite is a major component of Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its distinct interlocking mineral grains visible to the naked eye, commonly found in glacial till and riverbeds.
