英语语法分析

Feldspar; leucite; nepheline and nepheline syenite; fluorspar.

长石；白榴石；霞石及霞石正长岩；萤石(氟石)。

Nepheline is a typical kind of alkaline mineral, which forms mainly in alkaline deposit and its pegmatite.

霞石为典型的碱性矿物，主要生成于碱性岩及其伟晶岩中。

The light - colored minerals of K -rich volcanic rocks in this area are alkaline feldspar, leucite and nepheline.

本区富钾火山岩中浅色矿物有碱性长石、白榴石和霞石。