feldspar
柯林斯词典
1. N any of a group of hard rock-forming minerals consisting of aluminium silicates of potassium, sodium, calcium, or barium: the principal constituents of igneous rocks. The group includes orthoclase, microcline, and the plagioclase minerals 长石
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feldspar /ˈfɛldˌspɑː, ˈfɛlˌspɑː/ (also felspar)
剑桥词典
- a common type of mineral found especially in igneous rocks such as granite
长石（一种常见矿石，尤见于火成岩，例如花岗岩中） 返回 feldspar