pegmatite是什么意思
2024-01-30 02:49:17
pegmatite
n. 伟晶岩
形容词：pegmatitic
英英释义
Noun
- a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
例句
用作名词(n.)
- As with other mines containing pegmatite rocks, Brazilian Alexandrite is found in rugged areas that can be difficult to access.如其它含有伟晶岩的矿藏一样，巴西亚历山大石也只能在难以到达的崎岖地区所发现。
- Li- Be-Ta-Nb-bearing deposits in Lianyun Mountain occurred in Shangshi on the south wing of Lianyun Mountain anticline, the densely distributed pegmatite area.连云山上石含锂铍钽铌矿床位于连云山背斜南翼上石伟晶岩密集区，其地层为板溪群二云母片岩。