Heptasartorite
A variety of Minerals
What is Heptasartorite?
Heptasartorite is a very rare mineral with formula Tl7Pb22As55S108. It belongs to sartorite homologous series. It is related to other recently approved minerals of the series: enneasartorite and hendekasartorite. All three minerals come from a quarry in Lengenbach, Switzerland, which is famous of thallium minerals. Chemically similar minerals include edenharterite and hutchinsonite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Heptasartorite 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.
Heptasartorite Localities Map
See where Heptasartorite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Lead-grey, grey
- Hardness (Mohs)
- 3 - 3.5
- Density
- 4.9 g/cm³
- Streak
- Dark brown
Chemical Properties
- Chemical Formula
- Tl7Pb22As55S108
- Elements
- As, Pb, S, Tl
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Heptasartorite FAQs
How do I identify Heptasartorite?
Heptasartorite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Lead-grey color. Look for these key characteristics when examining specimens.
What color is Heptasartorite?
Heptasartorite typically appears in Lead-grey, grey. Color can vary depending on impurities and formation conditions.
How hard is Heptasartorite?
Heptasartorite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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