These cupriferous tourmalines from the mina da batalha in the federal brazilian state of paraiba are small , rare and precious 小稀有且极珍贵是这些含有铜
2.
Paraiba tourmalines are almost always quite small , since the beautiful cupriferous tourmaline crystals from the noble hill in paraiba were almost all fragments when they were discovered 为在巴西帕拉依巴山丘所发现的晶体几乎都是未成颗的
