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A large and mineralogically significant pyrite specimen displaying a clear transition between octahedral and pyritohedral crystal forms. The piece is defined by its complex crystallographic expression, where geometric evolution can be observed directly across the surface.
The dominant crystals show a hybrid morphology: partially developed octahedral faces merge into pyritohedral modifications, creating a dynamic interplay between sharper triangular geometries and more irregular pentagonal forms. This transitional growth habit gives the specimen a highly distinctive character that stands apart from purely cubic or purely pyritohedral material.
Several larger crystals are prominently positioned and exhibit strong reflectivity, acting as structural focal points. Surrounding zones consist of dense intergrowths of smaller crystals, reinforcing the overall mass while maintaining textural richness.
The metallic luster is intense and consistent across the specimen, with excellent light response. Natural growth features, including slight surface irregularities and minor contact marks, are present and contribute to the authenticity of the piece without diminishing its visual impact.
With its substantial size and advanced crystallographic development, this specimen is not only a display piece but also a clear illustration of pyrite’s morphological variability under changing growth conditions.
From the Huanzala Mine, this piece represents a particularly desirable form for collectors interested in crystallography, as transition specimens of this scale and clarity are significantly less common than standard cubic or pyritohedral clusters.
Part of our Huanzala Study Collection, this specimen bridges scientific interest and high-end display quality.
Shipping & Origin:
This specimen is shipped directly from Peru as part of a source-level release, providing access to material close to its locality of origin. Delivery is arranged door-to-door and included in the price.
We dispatch worldwide within 2 business days after payment. Global shipping requires an additional 3 to 5 business days. In accordance with international regulations, any import duties, taxes, or customs handling charges in the country of destination remain the responsibility of the recipient.
Condition:
Minor natural and extraction-related irregularities. Some crystals show natural growth textures and contact features. Overall, very good condition with strong structural integrity and well-preserved crystal forms. A large and crystallographically exceptional pyrite specimen capturing the transition between octahedral and pyritohedral growth.