2010年7月29日星期四

Silver Jewelry Makes Your Skin Turn Green

Copper reacts, oxidizes behaves in ways that can affect your skin in essence it is the copper that causes the silver blemishes, not the silver. Then chemical changes in the body can affect the metallic reaction of your jewelry causing a discoloration on the skin.Sterling silver more commonly contains a small percentage of copper. If you were to wear a pure silver ring you would find that it would knick very easily, bend in some cases, and tarnishes. Sometimes, silver jewelry ever left greenish or black marks on your skin. It commonly happened as a reaction between our skin and the metals used in jewelry, especially when the jewelry touches areas that perspire.Actually, jewelry is not pure silver or gold but rather it is an alloy or mixed metal. Pure silver or gold (defined as at least 24k) takes longer to chemically react. Normally, if it does react it doesn’t leave a green mark. Rather, it leaves a black smudge or gold or silver smudge. However, if it isn’t pure, and is comprised mostly of copper or iron then it is more likely to create a green mark as a metallic reaction to the air or other substance.