Mill (grinding) - WikipediaA mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting .. Rod mills are less common than ball mills for grinding minerals. . Quartz or silica is commonly used because it is inexpensive to obtain.rod milling of quartz,. Particle size distributions of barite and quartz minerals. - Figure 2 .Particle size distributions of barite and quartz minerals ground in different mills determined by sieving: (a) ball-milled barite, (b) rod-milled barite, (c) ball-milled.
rod milling of quartz