Pair of Vintage 3 1/4-Inch (Shoulder Duster) Sterling Silver & Marcasite Earrings Circa. An unusual and rare pair of exceptionally long sterling silver and marcasite earrings An ethereal earring that really sparkles when you move Difficult for our camera to capture the sparkle! Each earring measures 3 1/4 inches long with ear wire 3/8 inch wide, at their widest Total weight for the pair is a comfortable 8.1 g.