How much molybdenum is typically present in primary molybdenum deposits?

Primary molybdenum deposits typically contain between 0.1 and 0.5 percent molybdenum. These deposits are categorized as porphyry-disseminated deposits and are considered extensive sources of the metal.1

In contrast, complex copper-molybdenum deposits, which provide the majority of the world's molybdenum as a byproduct, contain significantly lower concentrations, ranging between 0.005 and 0.05 percent molybdenum.1