V2EX fayalite

Fayalite

Definition / 释义

Fayalite(铁橄榄石):一种橄榄石族矿物,化学式常写作 FeSiO,属于富铁的硅酸盐。常见于火成岩与某些变质岩中,也可见于陨石;颜色多为黄褐至深绿,具玻璃光泽。(橄榄石族中富镁端元为 forsterite。)

Pronunciation / 发音(IPA)

/fa..lat/

Examples / 例句

The sample contains fayalite and magnetite.
该样品含有铁橄榄石和磁铁矿。

In iron-rich basalt, fayalite may crystallize late as the magma cools and becomes more evolved.
在富铁的玄武岩中,随着岩浆冷却并逐渐演化,铁橄榄石可能在较晚阶段结晶形成。

Etymology / 词源

fayalite 由地名 Fayal(法亚尔岛,亚速尔群岛之一) 加上矿物名称常见后缀 -lite 构成,意为“来自(或与)法亚尔相关的矿物”。该矿物最初与该地区的岩石研究有关,因此得名。

Related Words / 相关词

In Literature / 文献与作品中的用例

  • Dana’s System of Mineralogy(《丹纳矿物学体系》)矿物学经典工具书中对铁橄榄石有系统条目与性质描述。
  • Introduction to Mineralogy(Nesse,《矿物学导论》)在橄榄石族与硅酸盐结构章节中常出现该词。
  • Principles of Igneous and Metamorphic Petrology(Winter,《火成与变质岩岩石学原理》)讨论岩浆结晶序列与矿物成分端元时常提及。
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