Albrechtschraufite
A variety of Minerals
What is Albrechtschraufite?
Albrechtschraufite is a very rare complex hydrated calcium and magnesium-bearing uranyl fluoride carbonate mineral with formula Ca4Mg(UO2)2(CO3)6F2·17H2O. Its molar weight is 1,428.98 g, color yellow-green, streak white, density 2.6 g/cm, Mohs hardness 2-3, and luster is vitreous (glassy). It is named after Albrecht Schrauf (1837–1897), Professor of Mineralogy, University of Vienna. Its type locality is Jáchymov, Jáchymov District, Krušné Hory Mountains, Karlovy Vary Region, Bohemia, Czech Republic.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Albrechtschraufite 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.
Albrechtschraufite Localities Map
See where Albrechtschraufite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Yellow-green
- Hardness (Mohs)
- 2 - 3
- Density
- 2.67 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O
- Elements
- C, Ca, F, H, Mg, O, U
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Albrechtschraufite FAQs
How do I identify Albrechtschraufite?
Albrechtschraufite can be identified by its hardness of 2 - 3 on the Mohs scale, Yellow-green color. Look for these key characteristics when examining specimens.
What color is Albrechtschraufite?
Albrechtschraufite typically appears in Yellow-green. Color can vary depending on impurities and formation conditions.
How hard is Albrechtschraufite?
Albrechtschraufite has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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