Green Moss Agate tumbled
A variety of Moss Agate
What is Green Moss Agate tumbled?
With its unique moss-like patterns created by manganese inclusions, green Moss Agate tumbled is a highly popular semi-precious stone. It is found in India, Uruguay, Brazil, USA, and several localities in Europe. It is most commonly cut into oval, round, or drop-shaped cabochons, and used with jewelry such as pendants.
Optical Properties
- Refractive Index
- 1.530-1.540
- Birefringence
- 0.004
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Green Moss 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.
Where to Find Green Moss Agate tumbled
Green Moss Agate tumbled is a variety of Moss Agate. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find moss agate in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find moss agateAlways check the local rules and get the landowner's permission before you collect.
Quick Facts
Physical Properties
- Streak
- Green
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- Si, O
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