V2EX orthoclase

Orthoclase

Definition / 定义

Orthoclase正长石(一种钾长石),化学式常写作 KAlSiO,属于硅酸盐矿物,多见于花岗岩等火成岩中。其特征之一是具有两组较明显的解理,解理面常接近直角。

Pronunciation / 发音

/rθkles/

Examples / 例句

Orthoclase is a common mineral in granite.
正长石是花岗岩中常见的矿物。

In thin section, orthoclase may show twinning and can alter to fine mica during weathering.
在岩石薄片中,正长石可能呈现双晶,并在风化过程中蚀变为细小的云母类矿物。

Etymology / 词源

词源来自希腊语:orthos(“直的、正的”)+ klasis(“断裂、破裂”),指它典型的近直角解理/断裂特征,因此得名“正长石”。

Related Words / 相关词

Literary Works / 文学作品

  • Manual of Mineralogy(James D. Dana 等,经典矿物学手册)
  • The System of Mineralogy(Dana,矿物学重要编纂著作)
  • Introduction to Mineralogy(William D. Nesse,常用矿物学教材)
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