$100Median
5Sold (12 mo)
$60Last sale
Cornetite specimens for sale
2 for sale · $1,000–$20,000 USD
17 in the gallery
Cornetite is a copper phosphate mineral that forms as blue to green, often translucent crystals with a vitreous lustre. It commonly occurs as small prismatic or tabular crystals, frequently grouped in clusters or rosettes, and can display a delicate, satin-like sheen when well-formed. Associations include secondary copper-bearing phases in oxidation zones, where hydrothermal fluids introduce phosphate and hydroxide, yielding its characteristic color and habit. Notable specimens come from copper-rich deposits in Africa and South America, with DR Congo and Chile among the more celebrated sources, and occasional finds from Zambia adding to the species’ regional diversity.
- Formula
- Cu3(PO4)(OH)3
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- High Interest
Buy Cornetite specimens
View all 2Where Cornetite is found
Top localities
- L'Etoile du Congo Mine10 specimens
- DR Congo1 specimen
- Copperbelt Province1 specimen
- Likasi Mine1 specimen
About Cornetite
Collectors prize cornetite for its striking color, relatively rare occurrence, and aesthetic crystal forms. While typically small, well-formed specimens can be highly decorative when mounted or displayed, and its vivid blue hues contrast nicely with neighboring minerals. The mineral’s crystallography and locality history provide context for understanding secondary copper phosphate mineralogy, making cornetite a preferred choice for display pieces and study within cabinet collections.
