A rare mineral form of arsenic sulfide with a metallic sheen, found in certain geological deposits.
A technical mineralogical term likely derived from a place name (Allemonte) combined with the mineral suffix -ite, following the convention of naming minerals after their discovery locations.
Scientists name new minerals after places where they're first discovered—so allemontite is basically a geological autograph, permanently marking where someone first noticed this rare golden-looking arsenic compound!
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