piedmontite

n.[矿]红帘石

一种红色到铁黑色的矿石，主要由双辉石和透闪石组成，常见于变质岩和斜长岩中。

名词

1、The formation of piedmontite is associated with regional metamorphism.
与区域变质作用相关的是双辉石的形成。

2、Piedmontite often occurs in association with other minerals such as garnet and epidote.
辉石矿常见与石榴石和英安石等矿物共生。