
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.
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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.