What is one of two elements that startwith an A used for jewelry?

One of the elements that starts with an "A" and is used in jewelry is aluminum. While not as common as precious metals like gold or silver, aluminum is lightweight, resistant to corrosion, and can be anodized in various colors, making it a popular choice for modern, trendy jewelry designs. Another element is alloys of gold, specifically the alloying element arsenic, which can be found in some gold jewelry.