V2EX oligoclase

Oligoclase

定义 Definition

oligoclase(矿物)指奥长石:一种斜长石族长石矿物,化学成分介于钠长石(albite)钙长石(anorthite)之间(常见于中酸性火成岩与变质岩中),典型特征包括长石常见的两组近于直角的解理与白色到灰白色外观。

发音 Pronunciation (IPA)

/lkles/

例句 Examples

Oligoclase is a common feldspar in many igneous rocks.
奥长石是许多火成岩中常见的一种长石。

Under the microscope, the thin section showed twinning in oligoclase, suggesting a plagioclase-rich granite.
在显微镜下,薄片中可见奥长石的双晶结构,这提示该花岗岩富含斜长石。

词源 Etymology

oligoclase来自希腊语词根 **oligo-**(“少、少量”)与 -clase / klasis(“断裂、破裂”相关),原意大致与“较少(或不明显)的裂开/断裂特征”有关,用于区分矿物在结构与解理等性质上的差别。该词在19世纪矿物学命名体系中逐渐固定下来。

相关词 Related Words

文献作品 Literary / Notable Works

  • Igneous and Metamorphic Petrology(Myron G. Best):在斜长石组成与岩石薄片鉴定的章节中常提及包括奥长石在内的矿物序列。
  • Introduction to Mineralogy(William D. Nesse):在长石族与斜长石固溶体系列的介绍中会出现“oligoclase”。
  • Petrology of the Igneous Rocks(A. Hatch, A. K. Wells 等):讨论火成岩矿物组成与分类时常使用“oligoclase”等矿物名称。
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