Coccinite
A variety of Minerals

What is Coccinite?
Coccinite is a rare mercury iodide mineral with chemical formula of HgI2, mercury(II) iodide. in addition to its discovery locality of Casas Viejas, Mexico, it has also been reported from Broken Hill, New South Wales, and from a uranium mine in Thuringia and old mercury workings in the Rhineland-Palatinate in Germany. At the Thuringia deposit the mineral occurs as a sublimation product resulting from fires associated with pyrite bearing, graptolitic slate.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Coccinite 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.
Coccinite Localities Map
See where Coccinite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Orange-red
Chemical Properties
- Chemical Formula
- HgI2
- Elements
- Hg, I

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Coccinite FAQs
How do I identify Coccinite?
Coccinite can be identified by its Orange-red color. Look for these key characteristics when examining specimens.
What color is Coccinite?
Coccinite typically appears in Orange-red. Color can vary depending on impurities and formation conditions.


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