板石

Moreover, we also export gray, green and yellow-rust slabstones, specializing in slabstone and kallaite with the processing, manufacturing and exporting as a whole.

是生产加工和出口销售板石和绿松石专营性企业。

Research shows that the dawsonite in Hailaer Basin exists in both the eroded volcano tuff and sedimentary volcano tuff,and is paragenous with corrensite and allevardite frequently.

研究表明,海地的碳钠铝石存在于火山凝灰岩或沉积凝灰岩,常与柯绿泥石和钠板石共生,形成凝灰质蚀变的型矿物组合。