Allargentum
A variety of Minerals
What is Allargentum?
Allargentum is a mineral from the class of antimonides, superclass of sulfides and sulfosalts (sometimes ascribed to the natural elements and alloys class), with formula written as Ag1−xSbx, where x = 0.09–0.16. This moderately rare mineral is found in silver ores and is therefore named from the Greek ἄλλος (allos, "another") and the Latin argentum ("silver"). Its Vickers hardness is 172–203.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Allargentum 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.
Allargentum Localities Map
See where Allargentum is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Silver
- Hardness (Mohs)
- 3.5
- Density
- 10.12 g/cm³
Chemical Properties
- Chemical Formula
- (Ag1-xSbx) (x ≈ 0.09-0.16)
- Elements
- Ag, Sb
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Allargentum FAQs
How do I identify Allargentum?
Allargentum can be identified by its hardness of 3.5 on the Mohs scale, Silver color. Look for these key characteristics when examining specimens.
What color is Allargentum?
Allargentum typically appears in Silver. Color can vary depending on impurities and formation conditions.
How hard is Allargentum?
Allargentum has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.
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