$640Median
51Sold (12 mo)
$85Last sale
Krohnkite with Brochantite
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Blue translucent crystalline krohnkite on matrix with associated brochantite from the Chuquicamata Mine, Chile. The krohnkite forms attractive blue crystals with good translucency and vitreous luster, contrasting nicely with the typically deep green brochantite on the matrix. Krohnkite is a hydrated copper sulfate that forms in arid, oxidized copper deposits, often as a secondary mineral in the supergene zone, and well crystallized examples are uncommon and desirable. Brochantite is a basic copper sulfate known for its rich green color and fibrous to acicular crystal habits, also forming in the oxidation zones of copper deposits. The Chuquicamata Mine in northern Chile is one of the largest open pit copper mines in the world and is famous for producing an exceptional suite of secondary copper minerals. This specimen also comes with an antique label dating to the early 20th century, as shown at the end of the video, adding important historical provenance and collector appeal.
Product details
SpeciesBrochantite
SizeSmall Cabinet
Dimensions9.0 x 8.5 x 3.5 cm
Listed on07/16/2026
LocalityChile, Antofagasta, Chuquicamata Mine
SKU1052012
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Brochantite
emerald-green prisms and silky sprays of a copper sulfate hydroxide; valued for vivid color, varied crystal habits, and copper-collection appeal.Regional guide
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