Quartz, calcite and vollestronite.
Quartz lumps, quarts powder and quarts greets.
Classic quartz.
Silica quartz lumps & fines.
"A" glassy quartz, milky white, fully dressed lumps, powder & sand having 99.76% sio2.
Quartz.
Emethyest, quartz.
Quartz lumps, quartz sand.