Rock Identifier
Granite Pebble (Felsic intrusive igneous rock) — igneous
igneous

Granite Pebble

Felsic intrusive igneous rock

AI-generated identification · may be incorrect

Hardness of 6 on the Mohs scale, speckled grey and white color, dull to vitreous luster, phaneritic crystal structure, and a specific gravity of around 2.65.

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Physical properties

Hardness of 6 on the Mohs scale, speckled grey and white color, dull to vitreous luster, phaneritic crystal structure, and a specific gravity of around 2.65.

Formation & geological history

Formed from the slow cooling of magma rich in silica beneath the Earth's crust over millions of years.

Uses & applications

Used in landscaping, decorative gravel, and occasionally as a tumbling stone for crafts.

Geological facts

Granite is the primary component of Earth's continental crust and is exceptionally durable against weathering.

Field identification & locations

Easily identified by its distinct interlocked mineral grains of quartz, feldspar, and mica; commonly found in riverbeds and glacial deposits.