Dalnegroite
A variety of Chabournéite Group
What is Dalnegroite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Dalnegroite 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.
Dalnegroite Localities Map
See where Dalnegroite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Red
- Hardness (Mohs)
- 3 - 3.5
- Density
- 4.82 g/cm³
- Streak
- Brownish-red
Chemical Properties
- Chemical Formula
- (Tl4Pb2)(As12Sb8)S34
- Elements
- As, Pb, S, Sb, Tl
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Dalnegroite FAQs
How do I identify Dalnegroite?
Dalnegroite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Red color. Look for these key characteristics when examining specimens.
What color is Dalnegroite?
Dalnegroite typically appears in Red. Color can vary depending on impurities and formation conditions.
How hard is Dalnegroite?
Dalnegroite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.