This, I must say, is an odd specimen. It is composed of very fine grained copper, on both sides, and yet a crinkled, thin sheet of copper is attached. Growing conditions for this specimen must have changed drastically for this unusual combination to form. Odd, yet intriguing. Chuck Youngblood owned a rock and jewelry shop in Bisbee for decades and sold his personal Bisbee collection to the Stoudts some years ago, 1998. 6.4 x 4.2 x 1.7 cm