Realgar

//ɹiˈæl.ɡɑɹ// noun

Definitions

Noun
  1. 1
    A mineral, arsenic sulfide (AsS), often associated with orpiment and stibnite in lead, silver and gold ores. uncountable, usually
  2. 2
    a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic wordnet

Etymology

From Middle English realgar, from Medieval Latin realgar, resalgar, from Arabic رَهْج اَلْغَار (rahj al-ḡār, literally “cave dust”).

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