| 单词 | witherite |
| 释义 | witherite/ˈwɪðərʌɪt /noun [mass noun] A rare white mineral consisting of barium carbonate, occurring especially in veins of galena.The mining of nonmetallic ores - fluorspar, witherite, and barite (known locally as baryte) - in the Northern Pennines began about the time lead and iron mining were in serious decline....
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