felsite /'felsait/ 📖 中文释义 n. 致密长石[化] 霏细岩; 致密长石 📘 English Definition(英文释义) n. A finegrained rock, flintlike in fracture, consistingessentially of orthoclase feldspar with occasional grains of quartz. ← felsina F 字母词表 felsitic →