Aubertite
A variety of Minerals
What is Aubertite?
Aubertite is a mineral with the chemical formula CuAl(SO4)2Cl·14H2O. It is colored blue. Its crystals are triclinic pedial. It is transparent. It has vitreous luster. It is not radioactive. Aubertite is rated 2-3 on the Mohs Scale. The sample was collected by J. Aubert (born 1929), assistant director, National Institute of Geophysics, France, in the year 1961. Its type locality is Queténa Mine, Toki Cu deposit, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Aubertite 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.
Aubertite Localities Map
See where Aubertite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Azure-blue.
- Hardness (Mohs)
- 2 - 3
- Density
- 1.85 g/cm³
- Streak
- (not reported)
Chemical Properties
- Chemical Formula
- CuAl(SO4)2Cl · 14H2O
- Elements
- Al, Cl, Cu, H, O, S
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Aubertite FAQs
How do I identify Aubertite?
Aubertite can be identified by its hardness of 2 - 3 on the Mohs scale, Azure-blue. color. Look for these key characteristics when examining specimens.
What color is Aubertite?
Aubertite typically appears in Azure-blue.. Color can vary depending on impurities and formation conditions.
How hard is Aubertite?
Aubertite 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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