What drusy quartz? | ehow - ehow | - discover, What is drusy quartz?. drusy (or druzy) is a geological term applied to quartz that forms a layer of closely spaced, small crystals that line a surface or. How clean quartz shower tile | ehow, How to clean quartz shower tile. quartz is quickly beginning to rival granite and marble in its popularity for tiling showers and countertops. on top of quartz's many.