Quartz | Properties, Varieties, Occurrence and Uses
Milky quartz: Milk quartz or milky quartz is the most not unusual kind of crystalline quartz. The white colour is due to minute fluid inclusions of gasoline, liquid, or each, trapped at some point of crystal formation, making it of little value for optical and first-rate gemstone packages. ... grinding media, and grit for sanding and sawing. It ...