| 单词 | realgar |
| 释义 | Word Frequency realgar(rɪˈælɡə) noun a rare orange-red soft mineral consisting of arsenic sulphide in monoclinic crystalline form. It occurs in Utah and Romania and as a deposit from hot springs. It is an important ore of arsenic and is also used as a pigment. Formula: AsS Word origin C14: via Medieval Latin from Arabic rahj al-ghar powder of the mine |
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