One excellent cabinet size specimen shows clearly the genesis of secondary copper minerals, formed after erosion of chalcopyrite filled cracks in the mother rock.
Тип минерал: cuprite
Crysocola, cuprite, chalcopyrite, turquoise, malachite
One very aesthetic, cabinet size specimen of chrysocolla, turquoise, chalcopyrite, malachite, cuprite, and most likely several other secondary copper minerals, a product of crystallization due to water activities in the cracks in an old mine.