Nice specimen - Polished Chrysocolla on Malachite - Height: 147 mm - Width: 85 mm- 1095 g

This specimen of chrysocolla on malachite comes from the Congo, one of the most famous regions in the world for copper ore and for the variety of secondary minerals that derive from it. The formation of this sample dates back to ancient geological times: the oxidation processes of large copper deposits, started millions of years ago, have favored the crystallization of copper carbonates and silicates which, layer after layer, gave rise to these spectacular concretions. The malachite, with its dark green bands and typical botryoidal structure, forms the solid base of the specimen. On it developed chrysocolla, which coats the surface with an intense blue-turquoise color, traversed by fine natural reticulations and by silvery veins due to metallic residues. The union of the two minerals creates a striking color contrast, telling the ongoing transformation of matter in oxidized copper ore deposits. This specimen, with an aesthetic of rare beauty, is a geological document that testifies to the meeting between mining processes and the deep times of the Earth. An ideal display piece for natural history collections, mineralogical museums, or for those who wish to enrich their spaces with a mineral that combines science and natural art in a single form.