The "transition zone" of the deposit is characterized and correlated with the horizon of disintegration and reduction processes of hypergenesis zones. Visual and mineralogical criteria for determining the boundaries of intervals characterized by reduced recoveries from tungsten trioxide ores were tested.
Quartz veins are natural objects with which industrial concentrations of ore mineralization are associated and which themselves can be bodies of minerals - raw materials for smelting various types of quartz glass.
