1(More fully "light red silver ore") = proustite.
2(More fully "dark red silver ore") = "pyrargyrite".
Late 17th century; earliest use found in John Webster (1611–1682), schoolmaster and polemicist.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。