igneous
Granite with Pegmatite Dike
Intrusive Igneous Rock
AI-generated identification · may be incorrectMohs hardness 6-7, colors range from gray to pink, phaneritic crystal texture, specific gravity 2.65-2.75.
Identified More igneous →
Explore Granite with Pegmatite Dike in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Mohs hardness 6-7, colors range from gray to pink, phaneritic crystal texture, specific gravity 2.65-2.75.
Formation & geological history
Formed by the slow cooling of magma deep underground, with later injections of coarse-grained pegmatite melt filling fractures.
Uses & applications
Used extensively in construction, monuments, countertops, and architectural facing stone.
Geological facts
Pegmatite veins often contain rare minerals and large crystal formations due to slow cooling in water-rich magma environments.
Field identification & locations
Identified by visible interlocking mineral crystals of quartz, feldspar, and mica, crosscut by lighter coarse-grained veins.
