Malachite tumbled
A variety of Malachite
What is Malachite tumbled?
Malachite tumbled is a beautiful rich green color with swirls of white throughout. Historically found in Egypt, Israel, and Russia, most malachite tumbled is now mined in the Democratic Republic of the Congo. It is popular for beads, ornamental carvings, and cabochons.
Optical Properties
- Refractive Index
- 1.655-1.909
- Birefringence
- 0.250-0.254
- Pleochroism
- None
- Optical Character
- Biaxial negative
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Malachite 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 Malachite tumbled
Malachite tumbled is a variety of Malachite. RockHoundR, the free-to-download rockhounding map from the Ruby Glint team, shows where collectors find malachite in the US, with land-access notes for BLM land and national forests. Collecting is banned in national parks.
See where to find malachiteAlways check the local rules and get the landowner's permission before you collect.
Quick Facts
Physical Properties
- Streak
- Light green
Chemical Properties
- Chemical Formula
- Cu2(CO3)(OH)2
- Elements
- C, Cu, H, O
Also Known As
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