feldspar
柯林斯詞典
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 長石
返回 feldspar
feldspar /?f?ld?spɑ?, ?f?l?spɑ?/ (also felspar)
劍橋詞典
- a common type of mineral found especially in igneous rocks such as granite
長石（一種常見鑛石，尤見於火成巖，例如花崗巖中） 返回 feldspar