Want a REAL rarity in your thumbnail collection? Try finding another one of THESE around; an old Cornwall meta-torbernite; and a huge complete single crystal, at that! This is a thick, pretty cluster of bladed crystals, with a superb shimmering bright green color, almost metallic.This dates to the 1800s and is a superb example of the material. It is complete all around and with only a tiny point of contact at the base. 2.5 x 2 x 1 cm