You've heard the term marcasite used before, but you might not be 100% sure what it is. Many people use it when they want to make vintage-inspired jewellery or home decor. It has a very old-school cool feel to it, and many fondly look at it as a piece of Old Hollywood glamour. When it comes down to it, there's actually a lot more to this trend. Courtesy of: Robert Matthew Lavinsky via Wikimedia Commons What is Marcasite? In its raw form, marcasite - sometimes referred to as "white iron pyrite" - is an iron sulfide with crystal structures similar to pyrite. In...