67mm Blue Onyx Sphere with Golden Veins – Argentina

Quick Highlights:

• Size/Dimensions: 67 mm (2.64 in) diameter
• Weight: 440 g (0.97 lb)
• Source: Argentina
• Polished in: Donghai, China
• Key Features: Rich navy to glacier blue banding with warm golden seams, dynamic internal zoning, fully natural and undyed

Introduction:

This 67mm sphere of natural "blue onyx" — a banded calcite from Argentina — showcases dramatic bands of blue, brown, and cream. The striking cross-banding, crisp zoning, and intricate patterning make it feel like a painted planet. Carved and polished in Donghai, this piece captures the quiet drama of sedimentary formation in a hand-sized sphere of timeless beauty.

Geological Details:

Commonly referred to in trade as "blue onyx," this material is actually banded calcite, a calcium carbonate mineral known for its rhythmic layers and subtle translucency. The stunning variations are formed as iron-rich waters deposit minerals over millennia, creating cross-bands, fracture lines, and dramatic seams.

This sphere, sourced from Argentina and polished in Donghai, features multiple mineral-rich zones, including warm iron oxide seams that create a visual anchor across the sphere’s surface.

Aesthetic Appeal:

The stone’s visual rhythm transitions between layers of denim blue, icy celestite, storm cloud grey, and sienna brown. On one side, iron oxide veining cuts dramatically across the banding, resembling a lightning strike or fossilized root. This is a bold sphere with both visual weight and natural elegance.

Metaphysical Properties:

Banded calcite is known for its calming energy, often associated with the throat chakra for clear communication and the solar plexus for emotional grounding. The iron-rich veins add a layer of energetic warmth and protection, believed to stabilize emotions and dispel confusion.

Rarity:

• Completely natural and undyed
• Distinct veining and cross-band structure is rarely this symmetrical
• Premium polish and symmetry with excellent hand-feel and full rotation

Why You’ll Love It:

This piece brings balance, beauty, and contrast — with moody oceanic tones punctuated by warm veins and glacial bands. It’s bold but versatile, ideal for collectors, decorators, or anyone drawn to layered beauty and natural architecture.

Specifications:

• Diameter: 67 mm (2.64 in)
• Weight: 440 g (0.97 lb)
• Finish: Fully polished
• Unique Features: Prominent iron-oxide banding and glacier blue layering

Collector’s Note:

Spheres with this level of symmetry and layered complexity are getting harder to source as polished Argentine material becomes more sought-after. This is a true statement piece in a smaller, easy-to-hold form.