What does "realgar" mean?

A mineral, arsenic sulfide (AsS), often associated with orpiment and stibnite in lead, silver and gold ores.

How do you pronounce "realgar"?

Pronounced //ɹiˈæl.ɡɑɹ//.

Common synonyms include: alabaster, arsenic pigment, arsenic sulfide mineral, asphalt, color, mineral.

/ɹiˈæl.ɡɑɹ/ noun

noun ·Rare ·Advanced level

Noun

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

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