nepheline

n. [矿] 霞石

词形变化

nephelines 复数 nephelines

释义与例句

n.
  1. 1.

    A feldspathoid mineral of silica-poor igneous, plutonic and volcanic rocks. Chemically, nepheline is a plagioclase feldspar with insufficient silica to satisfy the chemical bonds. Because of the unfilled bonds, nepheline weathers rapidly and can only be seen as inclusions in freshly broken rock.

    霞石

    可数 不可数 化学 地质

词汇关系

名词

同义词 1

nephelite

上位词 1

mineral

整体词 1

nephelinite

相关短语

nepheline syenite

词源

From Ancient Greek νεφέλη (nephélē, “cloud”), because crystals become cloudy when exposed to acid, + -ine.

来源：wiktionary