Eye Agate tumbled
A variety of Eye Agate
What is Eye Agate tumbled?
The popularity of eye Agate tumbled comes from the round, eyelike shapes that are revealed when this stone is tumbled and polished. However, the stone is quite rare. Eye Agate tumbled is mined primarily in Botswana, but also in several localities in the USA. This stone is most commonly used with jewelry or cut into cabochons.
Optical Properties
- Refractive Index
- 1.530-1.543
- Birefringence
- 0.004
- Pleochroism
- None
- Optical Character
- Biaxial positive
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Eye Agate tumbled before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Eye Agate tumbled Localities Map
See where Eye Agate tumbled is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Streak
- White
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- O, Si
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