Oursinite
A variety of Minerals
What is Oursinite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Oursinite 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.
Oursinite Localities Map
See where Oursinite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale yellow
- Hardness (Mohs)
- 3 - 3.5
- Density
- 3.674 g/cm³
Chemical Properties
- Chemical Formula
- Co(UO2)2(SiO3OH)2 · 6H2O All material so far seems to contain minor Mg replacing Co.
- Elements
- Co, H, O, Si, U
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Oursinite FAQs
How do I identify Oursinite?
Oursinite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Pale yellow color. Look for these key characteristics when examining specimens.
What color is Oursinite?
Oursinite typically appears in Pale yellow. Color can vary depending on impurities and formation conditions.
How hard is Oursinite?
Oursinite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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