zonal pegmatite
英
美
- 带状伟晶岩
双语例句
- 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。 - African Alexandrite is typically located in wet regions near rivers and mined by digging through river beds by hand to unearth the Alexandrite rich pegmatite rock.
非洲亚历山大石都典型地分布于临河的湿润地区，赤手沿河床挖掘，开采富含亚历山大石的伟晶岩。
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