Post by
rarihokwats on Oct 18, 2022 8:20am
Pegmatite dikes
Pegmatite dikes: Pegmatites are important because they often contain rare earth minerals and gemstones, such as aquamarine, tourmaline, topaz, fluorite, apatite and corundum, often along with tin, rare earth, and tungsten minerals, among others. Pegmatites have been mined for both quartz and feldspar.