A rare copper selenide mineral found in copper ore deposits.
Named after Jöns Jacob Berzelius, a 19th-century Swedish chemist, with the mineral suffix -anite; Berzelius was honored for his work on atomic weights and chemical composition.
Berzelius developed modern chemical notation (the symbols like H, O, C we still use today), so a mineral named after him is kind of fitting—he literally helped us write the language of chemistry.
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