pegmatite

1·Chrysoberyl in some granite pegmatite is a rare mineral that seldom seen in Altatic area, and it is a valuable precious stone.

新疆阿尔泰地区某些花岗伟晶岩含有金绿宝石，它是一种罕见的稀有元素矿物，而且具有极高的经济价值。

2·At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and violarite 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。

3·The research on geochemical characteristics and isotope age suggests that the deposit belongs to a magma-metasomatic pegmatite type deposit related to Fufang and Huitong granitic mass in genesis.

地球化学和同位素研究表明，该矿床为岩浆一交代花岗伟晶岩型矿床，成因上与付坊和会同岩体有关。

4·The mineralized pegmatite dykes are mostly controlled by NEE-striked longitudinal joints and lie in the marginal facies of Mufu mountain rocks mass.

矿化伟晶岩墙大多受NEE向纵向节理控制，并位于幕阜山岩体的边缘。