What is the Average Cost of Chalcocite per gram/pound? Average Chalcocite Price

Chalcocite is a dark grey to black copper ore mineral. It is found in hydrothermal veins but also in sedimentary rocks. It has a high content of copper, being one of the most important and profitable copper ores. The Chalcocite crystals are very rare and only a few places are known as sources such as the mines in Cornwall, England and Bristol. The crystals are much sought by collectors and often the price is as high as their rarity.