Elements of gold, mercury, arsenic and antimony ore deposits can be grouped into three groups according to the existent form of thallium and the close degree in thallium with other element, ie.

• 根据铊存在形式及其与有关元素密切程度不同，将金、汞、砷、锑矿床中元素分为三组即相关元素，共生元素和伴生元素。