an.or.thite
n.（名词）A rare plagioclase feldspar with high calcium oxide content occurring in igneous rocks.钙长石：一种氧化钙含量很高稀有斜长石，多出现于火成岩中
来源：From Greek an- [not] * see a- 源自 希腊语 an- [不] *参见 a-orthos [straight (from its oblique crystals)] orthos [直的（从其斜状水晶）]
