Front view of a dark metallic iron-cross pyrite twin mounted on a black display base

Pyrite Iron Cross Twin – Colombia

$49.00
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Front view of a dark metallic iron-cross pyrite twin mounted on a black display base
  • Front view of a dark metallic iron-cross pyrite twin mounted on a black display base
  • Front view of the pyrite twin beneath a clear acrylic display cover
  • Angled side view showing deeply striated metallic faces on the pyrite twin
  • Rear view of the dark blocky pyrite crystal with broad faces and angular projections
  • Opposite side view showing layered striations, small pits, and reflective crystal edges
  • Front view of a dark metallic iron-cross pyrite twin mounted on a black display base
  • Front view of the pyrite twin beneath a clear acrylic display cover
  • Angled side view showing deeply striated metallic faces on the pyrite twin
  • Rear view of the dark blocky pyrite crystal with broad faces and angular projections
  • Opposite side view showing layered striations, small pits, and reflective crystal edges
Pyrite Iron Cross Twin – Colombia

Pyrite Iron Cross Twin – Colombia

$49.00

About This Specimen

This Colombian pyrite displays the interpenetrating geometry associated with the iron-cross twin form. Its compact, blocky shape is defined by strongly striated faces, deep geometric recesses, and a dark metallic surface that flashes silver and muted bronze under direct light.

Specimen Details

  • Mineral / Specimen Type: Pyrite iron-cross twin
  • Locality: Colombia
  • Form & Structure: Interpenetrant twinned crystal with blocky geometry, stepped striations, and natural surface pitting
  • Color: Dark steel-gray to brown-black with silvery reflections and subdued bronze highlights
  • Rarity: Uncommon crystal form; pyrite is common as a species, but distinct iron-cross twins are less frequently encountered
  • Mohs Hardness: 6–6.5
  • Luster: Metallic
  • Chemical Formula: FeS2
  • Specimen Size: Toenail
  • Dimensions: 3.6 × 3.6 × 3.8 cm
  • Specimen Weight: 113.3 g — mineral only
  • Total / Display Weight: 161.7 g

About Pyrite

Pyrite is an iron sulfide mineral that crystallizes in the cubic system and commonly forms cubes, pyritohedra, and striated combinations. “Iron cross” describes a recognizable interpenetrant twinning pattern rather than a separate mineral species; pyrite has the formula FeS2 and a Mohs hardness of 6–6.5.

Traditional & Metaphysical Associations

In crystal traditions, pyrite is associated with confidence, determination, protection, and focused intention. Its metallic appearance and orderly geometry also make it popular for meditation spaces and symbolic displays. Metaphysical properties are based on traditional beliefs and are provided for cultural and informational purposes; they are not scientifically established or intended as medical advice.

Why This Specimen?

The pronounced cross-like intergrowth, layered face striations, and substantial weight give this miniature specimen a strong sculptural presence. Its unusually dark metallic finish emphasizes the crystal's angular silhouette and reflective edges.

Exact specimen pictured. You will receive the exact specimen shown in the photographs.

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