Guide
Brochantite specimens for sale
20 for sale · $110–$8,500 USD
205 in the gallery
Brochantite is a copper sulfate hydroxide mineral that forms emerald-to bottle-green crystals and masses. Its crystals are typically prismatic or tabular, often with a vitreous to pearly luster and a deep, saturated green color that can brighten with light. The mineral commonly occurs as aggregates in oxidized copper ores and secondary minerals, and it is frequently associated with green malachite, chrysocolla, and tenorite in arid mining districts.
- Formula
- Cu4(SO4)(OH)6
- Rarity
- Common
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Sulfate minerals; Sulfate- Hydroxides, copper; Strunz 7.BC
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Guide
Brochantite from Tsumeb, Namibia
Brochantite from Tsumeb, Namibia — a supergene copper sulfate with velvety green crusts and acicular crystals, oxidation-zone textures aiding identification.Read guide
Guide
Brochantite from Milpillas Mine, Mexico
Brochantite - Milpillas Mine, Mexico: emerald-green crystals with chisel terminations; superb display quality, high luster, premier provenance for collectors.Read guide
Guide
Brochantite from Bisbee, Arizona, USA
Brochantite from Bisbee, Arizona: dark emerald to blackish-green prismatic crystals in copper-oxide matrix, formed in oxidized copper deposits, a Bisbee classi…Read guideAbout Brochantite
Collectors seek Brochantite for its striking color and crisp crystal forms, with classic specimens from notable localities such as the United States, Mexico, and Morocco. The best examples show well-defined prisms or blades and can display sharp termination faces, making them appealing for display and study. Localities in desert regions contribute material that can form substantial crusts or cluster-rich matrices, enhancing both aesthetics and contrast with host rocks. Its rarity varies by deposit, but high-quality, lustrous crystals remain a sought-after target for mineral enthusiasts who appreciate secondary copper minerals and the mineralogical history behind oxidized copper systems.
