(…and a second question today to make up for the delay in posting yesterday’s :-))
This metal has historically been used as a dye - especially for glass (1). Its etymology lies in (2). What metal?


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Show Answer
Cobalt. It is named after the mischievous creature of German folklore called a Kobold. Miners named it Cobalt because the typical cobalt they mined was fused with Arsenic, and often caused them a lot of trouble, and they blamed it on the Kobolds!