Vintage 1930s Art Deco Marcasite Silver Screw EarringsVintage Art Deco screw on earrings set in silver featuring faceted marcasite stones. Marcasites are actually Pyrite also known as Fools Gold. It was used in jewellery due to it's ability to catch the light, giving a diamond effect. The earrings feature screw setting, they are easy and comfortable to wear. These earrings work really well with evening dresses as they catch the light beautifully in low lit settings. HALLMARK Sterling Silver MEASUREMENTS