Weiling pegmatite is a single orebody with a length of 1.5 kilometers, a width of 1 kilometer and an average thickness of 128 meters. The reserved resources of the Weiling deposit are more than 80 Mt, and the prospective resources are 200~300 Mt, the scale and type of which are really rare. What is more valuable is that pegmatite contains 5% high-purity quartz, and quartz, K-feldspar and mica can be fully utilized, with huge potential value and economic benefits. The preliminary experimental results show that the SiO2 purity can reach 99.994%. It is expected to form the first high-purity quartz producing area in China. The zircon 206Pb/238U age of the Weiling pegmatite is 388.5±3.1Ma, indicating that it was formed in the Early-Middle Devonian and is a super-large pegmatite deposit in the Caledonian.