How clean quartz stone | ehow, How to clean a quartz stone. the mineral quartz is the most abundant mineral in the earth's crust. quartz has a glassy luster, and is hard in comparison to many other. How drusy quartz worth? | ehow, How much is drusy quartz worth?. a drusy is a tiny quartz crystal that is found inside, or on the surface of, another stone. quartz is silicon dioxide, one. How remove stem quartz movemant watch | ehow uk, How to remove the stem from a quartz movemant watch. the stem is the tiny knob that you use to change the time on your watch. removing it takes few steps, but they.