igneous
Granite Pebble
Intrusive Igneous Rock
AI-generated identification · may be incorrectHardness of 6 on Mohs scale, gray or speckled coloration, dull to vitreous luster, phaneritic crystal structure, and a specific gravity around 2.75.
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Physical properties
Hardness of 6 on Mohs scale, gray or speckled coloration, dull to vitreous luster, phaneritic crystal structure, and a specific gravity around 2.75.
Formation & geological history
Formed from the slow cooling of magma beneath the Earth's crust, typically over millions of years.
Uses & applications
Used in construction, monuments, landscaping, and as crushed aggregate.
Geological facts
Granite is the most common rock type in the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified in the field by its interlocking visible crystals of quartz, feldspar, and mica; found worldwide in mountainous regions and riverbeds.
