Marcasite is the white form of Iron Pyrite, a metal, which in it's yellow form is known as 'fools gold' In jewellery making the Pyrite is polished to resemble diamonds. Marcasite has a rough distinctive shine and can be crafted into beautiful designs.         JEWELLERY CARE Remove jewellery when doing domestic chores.   Perfumes and hairsprays can cause discolouration. Always remove jewellery before applying creams or using soap. Chlorine in swimming pools can also damage jewellery   Store jewellery carefully. Always keep in seperate pouches or sectioned jewellery boxes.   Clean jewellery regulary according to the manufacturer.   Remove jewellery before going to bed and bathing.