Becquerelite
A variety of Minerals
What is Becquerelite?
Becquerelite is a uranium mineral with the chemical formula: Ca(UO2)6O4(OH)6·8(H2O). It is a secondary mineral which contains calcium and is a bright yellow colour. It has a Mohs hardness of about 2. It was named after the French physicist Antoine Henri Becquerel (1852–1908), who discovered radioactivity in 1896. Becquerelite contains about 70% uranium by weight. It is mainly mined in Kasolo of the former Zaire, in the present day Democratic Republic of the Congo.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Becquerelite 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.
Becquerelite Localities Map
See where Becquerelite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Amber-yellow, golden to lemon-yellow, yellow-orange, brownish yellow; yellow in transmitted light
- Hardness (Mohs)
- 2.5
- Density
- 5.1 g/cm³
- Streak
- Yellow
Chemical Properties
- Chemical Formula
- Ca(UO2)6O4(OH)6 · 8H2O
- Elements
- Ca, H, O, U
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Becquerelite FAQs
How do I identify Becquerelite?
Becquerelite can be identified by its hardness of 2.5 on the Mohs scale, Amber-yellow color. Look for these key characteristics when examining specimens.
What color is Becquerelite?
Becquerelite typically appears in Amber-yellow, golden to lemon-yellow, yellow-orange, brownish yellow; yellow in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Becquerelite?
Becquerelite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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