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

Granite Pebble

Intrusive Igneous Rock

Hardness of 6 on the Mohs scale, predominantly pink to grey color, dull to sub-vitreous luster, phaneritic crystal structure with visible quartz and feldspar grains, specific gravity around 2.65-2.75.

Identified More igneous
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Physical properties

Hardness of 6 on the Mohs scale, predominantly pink to grey color, dull to sub-vitreous luster, phaneritic crystal structure with visible quartz and feldspar grains, specific gravity around 2.65-2.75.

Formation & geological history

Formed from the slow cooling and solidification of molten magma beneath the Earth's surface over millions of years.

Uses & applications

Used in construction, monuments, countertops, and as a decorative stone in landscaping.

Geological facts

Granite is the most common rock type in the Earth's continental crust and is famously found in core mountain ranges like Yosemite's El Capitan.

Field identification & locations

Easily identified in the field by its interlocking mineral grains of quartz, feldspar, and mica. Commonly found in glaciated regions, riverbeds, and mountainous areas.