| 单词 | 正长石 |
| 释义 | 〔granite〕A common, coarse-grained, light-colored, hard igneous rock consisting chiefly of quartz, orthoclase or microcline, and mica, used in monuments and for building.花岗岩：一种常见的、晶粒粗糙的浅亮色坚硬的火成岩，主要由石英、正长石或微斜长石及云母组成，用于纪念碑和建筑物〔monzonite〕An igneous rock composed chiefly of plagioclase and orthoclase, with small amounts of other minerals.二长岩：一种主要由斜长石和正长石组成的火成岩，还含有少量其它矿物〔aplite〕A fine-grained, light-colored granitic rock consisting primarily of orthoclase and quartz.细晶岩：主要由正长石和石英构成的一种纹理细密的淡色花岗岩类岩石〔adularia〕A variety of transparent or translucent orthoclase.冰长石：正长石透明或半透明的变体〔orthoclase〕A variety of feldspar, essentially potassium aluminum silicate, KAlSi3O 8, characterized by a monoclinic crystalline structure and found in igneous or granitic rock. Also called potash feldspar 正长石：一种长石类，特别是钾、铝、硅合物，KAlSi3O 8，其特征为单颗晶体结构，发现于火山岩或花岗岩中 也作 potash feldspar〔sanidine〕A glassy variety of orthoclase feldspar, known as moonstone when translucent.透长石：一种玻璃质正长石，半透明时即为月长石 |
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