Marcasite & Rose Cut Prehnite
The Marcasite in this stone is blended into a quartz matrix. I've added a rose cut Prehnite stone for an accent.
The center piece is about 2-1/2" long by 3/4" wide. The sterling chain is 18" and finished with a sterling lobster clasp. The silver has been oxidized and then sanded to a satin finish.