名 称：电气石伟晶岩

主要成分：岩性为电气石花岗伟晶岩，矿物成分为电气石、钾长石、石英、白云母、绿柱石。

成 因：富含气液的残余岩浆形成

主要用途：质量好的电气石可做宝石（碧玺），碧玺用作首饰和工艺品的原料。透明度好的电气石，可切磨成面，属于中档宝石。

采集地点：内蒙古乌拉特中旗角力格太

Nmae：Tourmaline Pegmatite

Composition：Tourmaline pegmatite, consisting of tourmaline, potassium feldspar, quartz, muscovite and beryl.

Genesis：Formed via crystallization of residue volatile-rich magma.

Usage：High quality tourmaline is grated as gem stone, that could be used for making jewelries and art crafts. Fair transparent tourmaline could be cut to make rings, as middle grade gemstone.

Sample site：Jiaoligetai, Wulateqi, Inner Mongolia.