fahlerzPronunciation: /ˈfɑːlɛːts/Definition of fahlerz noun [mass noun] a grey crystalline copper-containing mineral, of which tetrahedrite and tennantite are the typical forms. Origin: late 18th century: from German, from fahl 'ash-coloured' + Erz 'ore'fahlerz in other Oxford dictionaries Definition of fahlerz in the US English dictionary
