For your consideration is this lovely sterling silver marcasite necklace. The large center pendant has nice open work, marcasites and a striped red orange stone - possibly an agate but this is a best guess for the center -- it is just gorgeous. It is a well made piece with marcasites in the pendant, chain and even the clasp. It is marked 925 with a great patina and I feel it is circa 1980s.
The pendant is a nice size and measures 2 and 1/4 inches by 1 and 1/8 inches across the widest points and including the bail. The necklace measures 16 and 3/4 inches when clasped.
The piece is in excellent condition, no missing marcasites, fully functional and even prettier in person - the stone's beauty it hard to capture with the camera glare.