I'm a fool for love. I've got a heart of gold. ....if you have a Pyrite bead in the shape of a sweetheart, you can say the same :) ....Each 7mm vertical drilled, heart-shaped Pyrite bead has a wonderful iridescent quality that appears to change color in the light. Yes, Pyrite is often called "Fool's Gold", but you'll be no fool with this one-of-a-kind gemstone.