tridymite

n. [矿]鳞石英

词形变化

tridymites 复数 tridymites

释义与例句

n.
  1. 1.

    A rare mineral of volcanic rocks that solidified at a high temperature, with the chemical composition silicon dioxide, SiO₂. Tridymite is chemically identical to quartz, but has a different crystal structure. Sometimes contains sodium aluminum silicate, which seems to be expelled when quartz solidifies at lower temperatures.

    鳞石英

    可数 不可数 化学 地质

词汇关系

名词

上位词 1

mineral

部分词 3

silica silicon dioxide silicon oxide

词源

The name refers to the peculiar habit of crystallizing in groups of three individuals.

来源：wiktionary