荣成大疃刘家铍矿矿物赋存状态

摘要

Beryllium element in Datuanliujia beryllium deposit mainly occurred as hydroxyl silicon single be‐ryllium mineral ore .BeO which was occurred as hydroxyl silicon single beryllium minerals accounts for 79 .45% ;w hile a small portion dispersed in other minerals .T he content of BeO are higher in hematite and limonite ,and followed by sericite and barite .A dispersed state of BeO accounts for 20 .55% ,and mainly occurred in sericite .It is caused by a high content of sericite ,and BeO dispersion state can not be recov‐ered .According to the combination of gangue minerals and useful mineral ,beryllium ore type is silicon hy‐droxyl stone sericite carbonate rock feldspar quartz type beryllium ore .%大疃刘家铍矿铍元素主要以羟硅铍石单矿物赋存在矿石中。以羟硅铍石单矿物存在的BeO占79．45％；少部分分散在其他矿物中，以赤铁矿、褐铁矿中 BeO 含量较高，其次是绢云母、重晶石等。BeO 呈分散状态占20．55％，主要集中在绢云母中，这是由于矿石中绢云母含量高所致，分散状态的BeO无法回收。根据矿石中有用矿物和脉石矿物组合，矿石类型为羟硅铍石绢云母碳酸盐岩长石石英型铍矿石。