Yichun Tantalum-niobium Mine is a large major mine of rare metals and also the largest tantalum-niobium concentrate and lithium mica concentrate producing base in China .
宜春钽铌矿是我国大型稀有金属重点矿山，又是全国最大的钽铌精矿、锂云母精矿生产基地。
Lithium concentrate