Studies of beryls from Xuebaoding by means of crystal chemistry, optical analysis, EPR and infrared spectroscopy indicate that beryls have high alkali ions and water content. Ferric ions(Fe3+) occupy octaheral sites, whereas ferrous ions(Fe2+), alkali ions and water molecules exist in the channel sites. There are two types of water molecules in the channel structure, namelyⅠtype andⅡtype.Ⅰtype water molecules can probably be further divided into two subtypes(Ⅰ1andⅠ2). The combination of ferrous ions(Fe2+) with water molecules in the channel structure results in hydrated ferrous ions[Fe2+(H2O)]. The green colour of beryls is caused by ferric ions(Fe3+). The thermoluminescence strengths and peak temperatures of beryls can be regarded as the typomorphic characteristics. The deposit is genetically of hypothermal type. Ore-forming solutions have abundant acidulous water and mephitic air.