Once it is determined that a wheelchair chest harness can be beneficial, consider the following points on safety first: Use the chest harness in conjunction with a lap belt or seat belt that is firmly fastened at all times.
Drusy (or druzy) is a geological term applied to quartz that forms a layer of closely spaced, small crystals that line a surface or cavity of another kind of rock.ave. GreenSeason/iStock/Getty Images. Drusy (or druzy) is a geological term applied to quartz that forms a layer of closely spaced, small crystals that line a surface or cavity of another kind of rock. Drusy quartz, silicon dioxide, is most commonly clear or whitish, and can resemble glittering sugar or snow crystals.
Drusy quartz are said to be the most commonly found crystal-coated stones. These rock or stone pieces are formed with the help of silica and water. With the mineralâs natural tendency to react with other substances, crystal quartz is then formed from the inside of rocks or more commonly as coating on the outside.rom the term âdruseâ, any rock coated with fine crystals or jewelry piece that resemble the same is called druzy or drusy. The fine layer of crystals that form in various rocks are secondary to years of exposure to various natural elements like gases that get trapped within them.