CU AU AND ZN PB SKARN DEPOSITS MODELS 18b c; Cox and
Skarns are classified as calcic if the protolith was lime stone and as magnesian if the protolith was dolomite; they are also classified by the most economically important metal present coppe r iron lead zinc gold tin tungsten etc Each class of skarn deposit has a characteristic though not necessarily unique size grade tectonic setting granitoid association and mineralogy