The Science Museum of Minnesota
Banded Agate Skull $69.99
Banded Agate Skull $69.99
Low stock: 1 left
This skull is carved from banded agate, a variety of chalcedony characterized by its layered bands of color. The alternating light and dark layers form as silica is deposited in rhythmic patterns within cavities of volcanic rock, creating unique striping in every piece.
- Material: Banded agate (a variety of chalcedony, SiO₂)
- Size: Approximately 2 × 3 inches
- Appearance: Polished skull with visible parallel or curved bands in tones ranging from white and gray to deeper browns or blacks
- Formation: Forms when silica-rich fluids fill cavities in volcanic rock, leaving layered deposits over time
- Physical Properties: Mohs hardness 6.5–7; vitreous luster; fine-grained microcrystalline quartz structure
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Authenticity & Sourcing
Authenticity & Sourcing
Ethically sourced from trusted global suppliers
Non-conflict and responsibly mined materials when applicable
Most pieces include authentication paperwork
Each mineral is natural and one-of-a-kind
Handmade & Small Batch
Handmade & Small Batch
Handmade in Iowa and thoughtfully curated
We partner with skilled artisan makers and small businesses
Produced in small quantities, never mass manufactured
Designed and selected with intention and quality in mind
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