Yarrowite
A variety of Minerals
What is Yarrowite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Yarrowite 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.
Yarrowite Localities Map
See where Yarrowite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Bluish-grey, black
- Hardness (Mohs)
- 2.5
Chemical Properties
- Chemical Formula
- Cu9S8 "Extended" formula is Cu+20Cu2+7(S2)7S10 (Goble, 1985).
- Elements
- Cu, S
Also Known As
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Yarrowite FAQs
How do I identify Yarrowite?
Yarrowite can be identified by its hardness of 2.5 on the Mohs scale, Bluish-grey color. Look for these key characteristics when examining specimens.
What color is Yarrowite?
Yarrowite typically appears in Bluish-grey, black. Color can vary depending on impurities and formation conditions.
How hard is Yarrowite?
Yarrowite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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