Orpiment Published August 2, 2019 at 800 × 516 in The Top 11 Toxic Minerals – Lies the Internet Told You ← Previous Next → Orpiment from El’brusskiy (Elbrusskii) Arsenic mine, Elbrus, Kabardino-Balkarian Republic, Northern Caucasus Region, Russia – photograph from Rob Lavinsky, iRocks.com.