Labels:crt screen | dialog box | hakham | sky | web site | window OCR: Physical properties of Quartz General Characteristics: Quartz, the second most common of all minerals {the most common being silica) composed primarily of silicon dioxide {SiO} It is distributed throughout the worla constituent of rocks or in the form of pure crystalline deposits. It is found in igneous rocks such CS granite, rhy olite, pup pegmatit Quartz crystallizes into a rhombohedral structure or form. The size of the crystals varies from minute particles that sparkle in rock surfaces to individual specimens weighing Imetric ton or more. 26 commor world aranite oegmatite uarfz allizes intc surtaces ndividuc metric
