igneous
Granite Pebble
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, speckled grey and white color with a dull to vitreous luster, phaneritic (coarse-grained) crystal structure, poor cleavage, specific gravity around 2.65-2.75.
Identified More igneous →
Explore Granite Pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6 on the Mohs scale, speckled grey and white color with a dull to vitreous luster, phaneritic (coarse-grained) crystal structure, poor cleavage, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow crystallization of magma below the Earth's surface over millions of years, commonly associated with continental tectonic activity.
Uses & applications
Used in construction, monuments, paving, countertops, and decorative landscaping.
Geological facts
Granite is the most common intrusive rock of Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified in the field by its distinct interlocking mineral grains of quartz, feldspar, and biotite mica. Commonly found in mountainous regions and riverbeds worldwide.
