Capgaronnite

A variety of Minerals

What is Capgaronnite?

Capgaronnite (HgS•Ag(Cl,Br,I)) is a mineral that forms small tufted aggregates or isolated crystals with a maximum width of 0.02mm and a maximum length of 0.1mm. This mineral is related to perroudite in chemical composition and crystal structure. Capgaronnite is associated with secondary minerals of Cu like olivenite, cyanotrichite, and tennantite.

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Capgaronnite 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.

Applies to all rocks & minerals.

Capgaronnite Localities Map

See where Capgaronnite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview

North ZoneCentral RidgeSouth Basin

Key Characteristics

Formation of Capgaronnite

Capgaronnite is a rare mineral that was observed in the Cap-Garonne copper-lead mine of Var, France. Capgaronnite is found in cavities of Triassic Conglomerate (geology) and Sandstone.

Quick Facts

Physical Properties

Color: Black, gray, greenish, yellow
Density: 6.19 g/cm³
Streak: Gray-black

Chemical Properties

Chemical Formula: AgHgClS Cl may be replaced by minor Br and I.
Elements: Ag, Cl, Hg, S

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Capgaronnite FAQs

How do I identify Capgaronnite?

Capgaronnite can be identified by its Black color. Look for these key characteristics when examining specimens.

What color is Capgaronnite?

Capgaronnite typically appears in Black, gray, greenish, yellow. Color can vary depending on impurities and formation conditions.

What is the formation of capgaronnite of Capgaronnite?

Capgaronnite is a rare mineral that was observed in the Cap-Garonne copper-lead mine of Var, France. Capgaronnite is found in cavities of Triassic Conglomerate (geology) and Sandstone.