Huemulite
A variety of Minerals
What is Huemulite?
Huemulite is a mineral with formula Na4Mg(V10O28)·24H2O that is yellow to orange in color. It was first discovered in Argentina in 1959 and described in 1966. The mineral is named for the Huemul mine in which it was discovered.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Huemulite 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.
Huemulite Localities Map
See where Huemulite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Composition of Huemulite
Huemulite exhibits the triclinic crystal system with space group P1 and one formula unit per unit cell. The crystal structure consists of decavanadate anions (V10O28) linked by an interstitial complex of isolated [Mg(H2O)6] and an infinite zigzag chain of [Na4(H2O)14]. There are a further four isolated H2O groups, two of which are positionally disordered.
Quick Facts
Physical Properties
- Color
- Yellowish orange to orange
- Hardness (Mohs)
- 2.5 - 3
- Density
- 2.404 g/cm³
- Streak
- Yellow
Chemical Properties
- Chemical Formula
- Na4Mg(V10O28) · 24H2O
- Elements
- H, Mg, Na, O, V
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Huemulite FAQs
How do I identify Huemulite?
Huemulite can be identified by its hardness of 2.5 - 3 on the Mohs scale, Yellowish orange to orange color. Look for these key characteristics when examining specimens.
What color is Huemulite?
Huemulite typically appears in Yellowish orange to orange. Color can vary depending on impurities and formation conditions.
How hard is Huemulite?
Huemulite has a hardness of 2.5 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
What is the composition of huemulite of Huemulite?
Huemulite exhibits the triclinic crystal system with space group P1 and one formula unit per unit cell. The crystal structure consists of decavanadate anions (V10O28) linked by an interstitial complex of isolated [Mg(H2O)6] and an infinite zigzag chain of [Na4(H2O)14]. There are a further four isolated H2O groups, two of which are positionally disordered.
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