Trigonite
A variety of Minerals
What is Trigonite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Trigonite 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.
Trigonite Localities Map
See where Trigonite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Yellow to yellow-brown, dark brown or black; pale yellow to brownish yellow in transmitted light
- Hardness (Mohs)
- 2 - 3
- Density
- 6.35 g/cm³
- Streak
- Yellow
Chemical Properties
- Chemical Formula
- Pb3Mn2+(AsO3)2(HAsO3)
- Elements
- As, H, Mn, O, Pb
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Trigonite FAQs
How do I identify Trigonite?
Trigonite can be identified by its hardness of 2 - 3 on the Mohs scale, Yellow to yellow-brown color. Look for these key characteristics when examining specimens.
What color is Trigonite?
Trigonite typically appears in Yellow to yellow-brown, dark brown or black; pale yellow to brownish yellow in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Trigonite?
Trigonite 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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