Pyrite Cube Cluster — Miniature

$191.68
Chemical FormulaFeS₂
Crystal SystemCubic
Mohs Hardness6–6.5
Specific Gravity5.01
LusterMetallic
TransparencyOpaque

Navajún produces the most geometrically perfect pyrite cubes on Earth — faces so flat they reflect like mirrors, edges so sharp they appear machined. The formation mechanism is deb…

8 in stock

SKU: TC-MIN-0237
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Description

There are objects in this world that carry the weight of unimaginable time. Navajún produces the most geometrically perfect pyrite cubes on Earth — faces so flat they reflect like mirrors, edges so sharp they appear machined. The formation mechanism is debated but involves replacement of organic material in marine sediments. Each cube grew slowly in Cretaceous seafloor mud, achieving precision a factory would envy.

This specimen originates from Navajún, La Rioja, Spain, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.

Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.

Formation

This specimen formed through geological processes operating over timescales that dwarf human history. The specific combination of chemistry, temperature, pressure, and time at this locality produced material of exceptional quality that makes it a valued addition to any serious collection.

Locality

Pyrite Cube Cluster — Miniature from Navajún, La Rioja, Spain. This locality is known for producing specimens of exceptional quality.

Collector Notes

Best displayed where natural light can play across the surfaces at different times of day.