A chemical compound containing cobalt and nitrite groups, often used in laboratory and industrial applications.
From cobalt (the metal element) + nitrite (a salt containing nitrogen and oxygen). Cobalt itself comes from German Kobalt, originally a mining term for troublesome ores. The suffix -ite denotes a chemical compound or mineral.
Medieval miners thought cobalt ore was cursed because it was so hard to extract pure metal—they blamed mischievous goblins, and the name might actually come from 'Kobold,' the German word for goblin!
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