Marcasite jewelry is made from pyrite and ranges in color from silver-white to bronze. ... The tiny stones are marcasite and the connecting pieces are sterling silver.

How can you tell marcasite jewelry?

The first step is to look at the back. The stamp on the silver base set is a good hint. You're looking for a stamp that says "925". Old Marcasite pieces have settings, like diamonds, while newer or cheaper pieces get glued in.

What metal is marcasite?

Marcasite jewellery is frequently made by setting small pieces of faceted pyrite into silver. Cheaper costume jewelry is made by gluing pieces of pyrite rather than setting. A similar-looking type of jewelry can be made from small pieces of cut steel.