syenites
📖 中文释义
- (syenite 的复数) n. 正长岩
🧩 词形变化
原形 syenite
📘 English Definition（英文释义）
- plural of syenite
- n. Orig., a rock composed of quartz, hornblende, and
- feldspar, anciently quarried at Syene, in Upper Egypt, and now called
- granite.
- n. A granular, crystalline, ingeous rock composed of
- orthoclase and hornblende, the latter often replaced or accompanied by
- pyroxene or mica. Syenite sometimes contains nephelite (elaeolite) or
- leucite, and is then called nephelite (elaeolite) syenite or leucite
- syenite.