Hessite
A variety of Minerals
What is Hessite?
Hessite is a mineral form of disilver telluride (Ag2Te). It is a soft, dark grey telluride mineral which forms monoclinic crystals. It is named after Germain Henri Hess (1802–1850). Hessite is found in the US in Eagle County, Colorado and in Calaveras County, California and in many other locations. Stützite (Ag7Te4) and empressite (AgTe) are related silver telluride minerals.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hessite 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.
Hessite Localities Map
See where Hessite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- lead-grey, steel-grey
- Hardness (Mohs)
- 2 - 3
- Density
- 8.4 g/cm³
- Streak
- black
Chemical Properties
- Chemical Formula
- Ag2Te
- Elements
- Ag, Te
Also Known As
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Hessite FAQs
How do I identify Hessite?
Hessite can be identified by its hardness of 2 - 3 on the Mohs scale, lead-grey color. Look for these key characteristics when examining specimens.
What color is Hessite?
Hessite typically appears in lead-grey, steel-grey. Color can vary depending on impurities and formation conditions.
How hard is Hessite?
Hessite 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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