I shall tell you the tale.... Once upon a time, a Rhineland potter thought he had enough wood for one last firing before having to head out into the forest, with his wagon and ax, to do all the hard labor of cutting, splitting, and hauling the wood back to his pottery. Besides, his merchant friend wanted his latest pots ready to ship in four days; it would take longer than that just to replenish his woodshed.
The blue on pottery is Cobalt, a mineral found in many countries including the USA and in Connecticut.
Some kobolds are believed to be spirits dwelling in caves and mines. Other kobolds have specific names, like Hodeken or Goldemar.
The name of the color Cobalt Blue comes from the kobold. Miners blamed the tricky kobold for accidents in the mines. They also accused the malicious goblin of stealing precious silver and leaving behind worthless rock that looked as though it contained metal but didn't. They mockingly called the false ore Kobold. The name stuck even when the stone was found to be useful as, among other things, a blue pigment.
Kobolds can be found in Germany, Austria, Denmark, Sweden and Switzerland. The word kobold comes from the German word kobalt or kobold meaning "evil spirit", and is often translated in English as goblin. Kobold is often used in German to translate the word 'Leprechaun', a type of Irish fairy goblin.
Variants: kobolde, kobalt, koblernigh (welsh), coblynau (welsh).