What is Marcasite? Marcasite is a natural mineral that is called iron sulfide and is regularly mined in South America though it is found naturally all around the world and marcasite is related to iron pyrite which is also called Fools Gold due to its likeness to gold but relative low price miners would confuse iron pyrite for gold when staking a claim and only realising their blunder later. The color of marcasite ranges from dark grey to black regularly with sparks of yellow or gold throughout the stone. As with all natural stones, the color can vary somewhat. Marcasite was considered to decrease negative energy and enhance communication. Marcasite Becoming FashionableMarcasite jewelry became fashionable in the Victorian era its black color was popular at the time especially at the end of the Queens reign when sombre clothing and adornment was the style. Cameo pendants and brooches/pins were especially admired and there are many examples of the dark marcasite contrasting with ivory.Marcasite NowadaysCurrent marcasite jewelry is now fashionable due to its links with history. A whole niche has been fashioned for what is often called vintage style where traditional resources are used to make new, fashionable pieces and are regularly seen being worn my a range of celebrities who like the style.Taking Care and Cleaning MarcasiteOften, marcasite is secured in its setting with jewelers cement and because of this, it may demand special cleaning.Do Wipe gently with a soft and clean damp cloth. Dry with a clean, soft and absorbent cloth. Use a towel to ensure that the piece is fully dry. Dont Use a steamer, hot water or sonic cleaner Expose to chemicals or cleaning agents Expose to extreme temperature Soak in water As with all jewelry, a bit of nurture and patience gives its own reward with longer lasting pieces.