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 sub-vitreous luster, phaneritic crystal structure, and a specific gravity around 2.75.

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Physical properties

Hardness of 6 on Mohs scale, speckled grey and white color, dull to sub-vitreous luster, phaneritic crystal structure, and a specific gravity around 2.75.

Formation & geological history

Formed through the slow cooling of magma beneath the Earth's crust over millions of years, commonly found in continental shields.

Uses & applications

Used widely in construction, dimension stone, monuments, and landscaping.

Geological facts

Granite is the primary component of the continental crust and resists weathering exceptionally well over geological timescales.

Field identification & locations

Easily identified by its visible interlocking mineral grains of quartz, feldspar, and mica; found globally in stream beds and mountainous regions.