A massive chunk of dolomitic limestone with multiple Herkimer Diamond quartz crystals. The main crystal is large and in excellent condition, making this quite a special yard rock to say the least. It's heavy and you can feel how dense it is. While it can be trimmed into a real high quality specimen, I like it the way it is.
Quartz var. Herkimer Diamonds from Herkimer Diamond Mines, Middleville, Herkimer County, New York, USA
