Natural green crystal rare rare rare. The green crystal produced in the state of Minas Gerais, Brazil, is a green variety that has been transformed into amethyst. China has also found several locations of Green Crystal, of which Donghai County is the most prolific in Jiangsu, followed by Yunnan and Beijing Xishan.
two types of green crystal minerals discovered in Donghai County, Jiangsu Province, were green crystallites. The single crystal particle size was 1-1.5 cm. The crystals were complete, but the transparency was poor. The other was yellow-green blocks, with strong grease and luster. Strong, large block.