In 2012, a new tremolite deposit was found near the main tremolite jade ore district in Donggang Village of Dahua. Microscopic analysis reveals that the main mineral composition of the amphibole deposit in Donggang Village is tremolite whose content is higher than 95% in general. The tremolite has relatively small particles and fairly delicate structure. Through REE and hydrogen and oxygen isotope analysis, the authors inferred the source of metallogenic material and hydrothermal origin, and considered that the Donggang Village tremolite deposit is a magmatic hydrothermal replacement deposit.