Bornite with Calcite and Quartz - image 1
Bornite with Calcite and Quartz - image 2
specimen video

Bornite with Calcite and Quartz

$700.00

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Crystal Classics
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Tucson, Arizona, USA
7,579 for sale·132 sold
Good Bornite crystals are not common and this specimen displays a fine example as a single 1.5 x 1 x 1 cm compound crystal covered in scaley faces with a characteristic metallic iridescence of peacock blue, reddish-purple and gold. This fine crystal sits against a 4 cm long crude scalenohedral Calcite coated in brassy iridescent micro-crystals of Pyrite on top of a matrix of crystallised glassy Quartz. The Calcite is double terminated, although the tip of its upper termination is slightly cleaved. A lovely miniature from the Dzhezkazgan mining district in the Karaganda Region of Kazakhstan. The specimen comes mounted on a square clear acrylic base.

Product details

Species
Bornite, Calcite, QuartzAbout Bornite →
SizeMiniature
Dimensions4.3 x 4.0 x 2.8 cm
Listed on10/24/2024
Locality
Kazakhstan, Karaganda Region, Dzhezkazgan mining districtRegional guide →
SKUCC19402

Learn more

Mineral guide
Learn about Bornite
vivid iridescent tarnish, metallic luster, and rare sharp crystals; formed in diverse deposits and prized by collectors for color, rarity, and histor…
Bornite
Regional guide
Bornite from Dzhezkazgan mining district, Kazakhstan
Dzhezkazgan is the bornite locality serious collectors use as a benchmark. Bornite is not an exotic species in ore deposits, but sharp, lustrous, free-standing bornite crystals of display quality are uncommon worldwide; Dzhezkazgan is one of the few places where the species came out as recognizable crystals rather than merely as metallic ore. The classic look is a dark, metallic, blue-black to black crystal—often with subtle violet, indigo, silver, or bronze tarnish—set against pale quartz, calcite, or bladed baryte. The contrast is part of the magic: a dense copper-iron sulfide with a dark velvet-metal surface perched on a light, sparkling gangue.