A monoclinic basic copper carbonate, Cu2CO3(OH)2, of a deep green colour, usually occurring as banded botryoidal crusts of aggregated fibres, and…
= chrysocolla, n. 1.
A name meaning ‘gold-solder’, anciently given to some mineral or minerals; it may have included borax, to which the name was in later times…
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。