pegmatite

英 /'pegmətaɪt/ 美 /'pegməˌtaɪt/

中文释义

n.伟晶岩

Li - Be - Ta - Nb - bearing deposits in Lianyun Mountain on thewing 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.
At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and accompanied by magnetite and hematite.

在伟晶岩接触带,硫化物成分变为黄铜矿、针镍矿、黄铁矿及硫镍铁矿, 伴生有磁铁矿和赤铁矿.
There is high tantalite grade for certain large scale granite - pegmatite pattern tantalite - columbite mine in our country.

我国某大型花岗伟晶岩型铌钽矿含钽品位高居我国钽铌矿山之首.