Definition of mispickel in US English:



  • another term for arsenopyrite
    • ‘A dressed product of copper works in South America, consisting of grains of native copper mixed with pyrite, chalcopyrite, mispickel, and earthy minerals.’
    • ‘It can be obtained from mispickel by heating, which causes the arsenic to sublime and leaves the iron sulfide.’
    • ‘Arsenic is occasionally found as a free element, but it is usually found in a number of minerals, the most common one being mispickel.’
    • ‘In the periphery of the oxidation, copper mineralization occurs as chalcopyrite, bornite, tennantite and mispickel.’
    • ‘The best conductor among the natural sulphides appeared to be mispickel, which vies in this respect with some of the metals.’


Late 17th century: from German.