The fineness of native gold is influenced by many factors, such as genetic type, formation depth, the degree of metamorphism, mineralizing temperature and stages etc.

• 影响金成色的因素较多，包括矿床成因类型、形成深度、变质程度、成矿时代、成矿温度和矿化阶段等，其中金矿床形成深度是最关键的因素。