| 单词 | galena |
| 释义 | Word Frequency galena(ɡəˈliːnə) or galenite (ɡəˈliːnaɪt) noun a grey mineral, found in hydrothermal veins. It is the chief source of lead. Composition: lead sulphide. Formula: PbS. Crystal structure: cubic Word origin C17: from Latin: lead ore, dross left after melting lead |
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