Liebigite
A variety of Minerals
What is Liebigite?
Liebigite is a uranium carbonate mineral with the chemical formula: Ca2(UO2)(CO3)3·11H2O. It is a secondary mineral occurring in the oxidizing zone of uranium-bearing ores. It is green to yellow green in colour. It has a Mohs hardness of about 3. Liebigite, like some other uranium minerals, is fluorescent under UV light and is also translucent. It crystallizes in the orthorhombic system, but only rarely forms distinct crystals. It typically forms encrustations or granular aggregates. It was first described in 1848 for an occurrence in Adrianople, Edirne Province, Marmara Region, Turkey. It was named for German chemist Justus von Liebig (1803–1873).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Liebigite 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.
Quick Facts
Physical Properties
- Color
- Green to yellowish-green
- Hardness (Mohs)
- 2.5 - 3
- Rock tumbling
- Not recommended
- Density
- 2.43 g/cm³
Chemical Properties
- Chemical Formula
- Ca2(UO2)(CO3)3 · 11H2O
- Elements
- C, Ca, H, O, U
Also Known As
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Liebigite FAQs
How do I identify Liebigite?
Liebigite can be identified by its hardness of 2.5 - 3 on the Mohs scale, Green to yellowish-green color. Look for these key characteristics when examining specimens.
What color is Liebigite?
Liebigite typically appears in Green to yellowish-green. Color can vary depending on impurities and formation conditions.
How hard is Liebigite?
Liebigite 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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