igneous
Granite Pegmatite
Pegmatite
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, coarse-grained texture, pale white to tan color with dark mineral flecks, vitreous luster.
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Physical properties
Hardness of 6-7 on Mohs scale, coarse-grained texture, pale white to tan color with dark mineral flecks, vitreous luster.
Formation & geological history
Formed from extremely slow-cooled, volatile-rich magma chambers deep within the Earth's crust during late-stage crystallization.
Uses & applications
Used as a source of rare-earth elements, industrial minerals, and in decorative stone manufacturing.
Geological facts
Pegmatites host some of the largest known mineral crystals in the world, often exceeding several meters in length.
Field identification & locations
Identified by its exceptionally large crystal grains compared to standard granite, commonly found in continental shields and mountain roots.
