realgar [Brit rɪˈalɡə, Am riˈælɡər, riˈælˌɡɑr] СЪЩ
- realgar
- realgar м
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Realgar is an arsenic sulfide mineral, and when powdered can be toxic.
hyperallergic.com Arsenic sulfides (orpiment, realgar) and oxides have been known and used since ancient times.
en.wikipedia.org Realgar was used by firework manufacturers to create the color white in fireworks prior to the availability of powdered metals such as aluminium, magnesium and titanium.
en.wikipedia.org It forms gradually from realgar under exposure to light.
en.wikipedia.org Minerals found within the veins and locally disseminated within the sediments and intrusions include arsenopyrite, realgar, chalcopyrite, pyrite, bismuthinite and rare galena.
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