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单词 litchfieldite
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litchfieldite

英汉-汉英词典
钠云霞正长岩
词组 | 习惯用语
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  • chesterfield n. 一种长大衣;大型沙发椅的一种
  • highfalutin adj. 自大的,骄傲的
  • Whitefield 怀特菲尔德

网络短语:
litchfieldite 霞云钠长岩
cancrinite litchfieldite 钙霞钠长霞正长岩
英语百科

Litchfieldite

Litchfieldite (nepheline syenite gneiss) from Canaã Massif, Brazil

Litchfieldite is a rare igneous rock. It is a coarse-grained, foliated variety of nepheline syenite, sometimes called nepheline syenite gneiss or gneissic nepeheline syenite. Litchfieldite is composed of two varieties of feldspar (mostly albite but also some microcline), with nepheline, sodalite, cancrinite and calcite. The mafic minerals, when present, are magnetite and an iron-rich variety of biotite (lepidomelane).

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更新时间:2025/6/28 13:08:51