Pyrite is the mineral that is often called 'Fool's Gold' - not gold, but so sparkling, even in its natural state that it is mistaken for it.
Marcasite is a mineral that is very similar to pyrite and is usually yellow to brassy and with a metallic luster. Marcasite can cause sterling silver findings to oxidize more quickly than usual. These are the items that we currently carry in these materials.
