16 inch Prehnite Rondelle Beaded Necklace with Handmade Gold Plated Silver and Yellow Quartz Lemon Pendant and Gold Filled Spring Clasp Chain: 16"Prehnite Heishi Beaded Chain Pendant: 25mm Carved Yellow Quartz and Green CZ in Gold Plated Sterling Silver Jewelry Care Recommendations: Please avoid chemical solutions, perfumes, excessive sweat, seawater and/or pool water. Salt water and chlorine can damage your jewelry. Chlorine can damage and discolor metals that are alloyed with the gold and can slowly erode the finish and polish of gemstones.Also, lotions and sprays create a film on the jewelry, making it dull and dingy. To keep any tarnish or wear from setting in, take a soft, damp cleaning cloth and gently wipe off the surfaces of the jewelry, being sure to get in all the nooks and crannies. Keep jewelry dry. Moisture is the main factor that speeds up the tarnishing process. Store different types of jewelry separately. We recommend using a Ziploc or sandwich bag with the air squeezed out to prevent oxidization. Apply cosmetics, hair products, lotions, perfumes and powders prior to donning your jewelry. Remove your pieces before showering, swimming, sunbathing and exercising.Metals may tarnish over time due to oxygen and natural body oilsTo reduce tarnishing, store jewelry in a sealed bag or box in a dry, dark and cool place.