Hallimondite
A variety of Minerals
What is Hallimondite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hallimondite 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.
Hallimondite Localities Map
See where Hallimondite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 2.5 - 3
- Density
- 6.445 g/cm³
Chemical Properties
- Chemical Formula
- Pb2(UO2)(AsO4)2 · nH2O, 0 <= n <= 0.5
- Elements
- As, H, O, Pb, U

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Hallimondite FAQs
How do I identify Hallimondite?
Hallimondite can be identified by its hardness of 2.5 - 3 on the Mohs scale. Look for these key characteristics when examining specimens.
How hard is Hallimondite?
Hallimondite has a hardness of 2.5 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.


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