
igneous
Granite Pebble
Intrusive Igneous Rock
Hardness of 6-7 on the Mohs scale, speckled appearance with pink, white, gray, and black minerals, dull to vitreous luster, phaneritic crystal structure, 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 6-7 on the Mohs scale, speckled appearance with pink, white, gray, and black minerals, dull to vitreous luster, phaneritic crystal structure, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma deep beneath the Earth's crust, typically over millions of years.
Uses & applications
Used in construction, monuments, countertops, paving, and landscaping.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its distinct interlocking mineral grains of quartz, feldspar, and mica. Found worldwide in mountainous regions and glacial deposits.