QUARTZ - SiO2 Here's another "Solution" Quartz from Jeffrey Quarry, Pulaski County, North Little Rock,Arkansas. This quarry is long closed and under water. Unique to this Quarry. The crystals are double terminated with multi-terminations and Faden growth. Contact or break in lower end of smaller crystal on left. Length is 4.5 cm (1-3/4") long.