igneous
Granite Pebble
Intrusive igneous rock (Quartz, Feldspar, Mica)
Hardness of 6-7 on the Mohs scale, speckled grey and white color, dull to sub-vitreous luster, crystalline granular structure, specific gravity around 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, speckled grey and white color, dull to sub-vitreous luster, crystalline granular structure, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling of magma beneath the Earth's surface, typically over millions of years.
Uses & applications
Commonly used in construction, landscaping, countertops, and decorative gravel.
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 distinct interlocking mineral crystals of quartz and feldspar; found worldwide in mountainous regions and riverbeds.
