Unique Pyrite Cubes on Matrix

This exceptional Spanish Pyrite specimen stands out for a reason that directly justifies its value: perfectly formed rectangular cubic crystals are already rare, and this piece features an even rarer formation—Pyrite growing on top of another Pyrite crystal, a phenomenon seldom seen in specimens from Spain.

Sourced from Navajún, La Rioja, the sharply defined cubes display intense metallic luster, crisp edges, and striking geometric balance. The secondary crystal growth elevates this specimen far beyond standard Pyrite pieces, making it a true collector-grade rarity rather than a common decorative example.

A highly desirable piece for serious mineral collectors or anyone seeking a standout, museum-quality specimen defined by genuine geological rarity.

Features

• Natural Pyrite from Navajún, Spain

• Rare rectangular cubic crystal habit

• Extremely uncommon Pyrite-on-Pyrite growth

• Strong metallic luster and sharp crystal edges

• High-value collector specimen with museum appeal