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R______
Definitions
a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic
Word origin
From Middle English realgar, from Medieval Latin realgar, resalgar, from Arabic رَهْج اَلْغَار (rahj al-ḡār, literally “cave dust”).
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for realgar yet.