Collector specimen Pyrite with Marmatite – Huanzala Mine, Peru - Height: 125 mm - Width: 125 mm- 3302 g

This specimen comes from the famous Huanzala mine, a location renowned for the formation of pyrites of exceptional aesthetic quality. The structure of the sample is a natural intergrowth of metallic crystals that fully showcase the mineralogical power of this deposit. The pyrite appears with perfectly formed crystals, with clear and bright geometry. The reflective facets are typical of the locality: smooth, almost mirror-like surfaces, with a deep golden color that never shifts toward pale. The aggregates show a predominance of pentagonododecahedral and modified cubic forms, with a three-dimensional growth rich in natural cleavage planes and micro-scarifications from hydrothermal development. Framing the pyrite, like a dark embroidery that enhances its brilliance, is the iron-rich sphalerite (marmatite variety). Here, it appears in black microcrystals, compact and finely granular, with a resinous-metallic luster. Marmatite is a classic indicator of Huanzala's sulfide-metallic hydrothermal environments, where pyrite, sphalerite, and galena form stable assemblages during mineralization phases. The Huanzala mine is a polymetallic hydrothermal deposit formed during the Andean magmatic activity of the Miocene.