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.
The term drusy, used to refer to encrustations or clusters of minute crystals, has become familiar to many jewelry designers and consumers. Drusy gemstones that are incorporated into jewelry provide a unique look like the sparkling of sugar or snow.Agate-Geode Drusy. You will sometimes see the term spelled druzy, druse or drusies. All these terms refer to the same thing-tiny crystals that form within or on the surface of other minerals.By far the most commonly found drusy is quartz (agate or chalcedony), but many other gem types exist in this form.n drusy gemstones, quality is determined not just by color, weight and clarity, but also by the size and evenness of crystal coverage. The evenness with which the matrix is covered is an important value factor. Good drusies are relatively rare, especially in non-quartz species.