Rock Identifier
Granite Pebble (Intrusive Igneous Rock) — igneous
igneous

Granite Pebble

Intrusive Igneous Rock

AI-generated identification · may be incorrect

Hardness of 6 on Mohs scale, speckled grey and white color, dull to vitreous luster, phaneritic crystal structure, lacks prominent cleavage, specific gravity of 2.65.

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Physical properties

Hardness of 6 on Mohs scale, speckled grey and white color, dull to vitreous luster, phaneritic crystal structure, lacks prominent cleavage, specific gravity of 2.65.

Formation & geological history

Formed by the slow cooling of magma beneath the Earth's surface over millions of years.

Uses & applications

Used in construction, monuments, countertops, and decorative landscaping.

Geological facts

Granite is the most common rock of Earth's continental crust and is exceptionally durable against weathering.

Field identification & locations

Easily identified by its distinct salt-and-pepper speckled appearance and intergrown visible crystals; commonly found in riverbeds and glacial drift.