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

Calcite with Bornite

$350.00

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Crystal Classics
Crystal ClassicsFeatured
Tucson, Arizona, USA
7,579 for sale·132 sold
A solitary double terminated scalenohedral Calcite measuring 5 cm long is perched at about 30 degrees to a long and flat bed encrusted with mm sized Calcite crystals. The large Calcite is dusted with micro-granular golden-bronze Chalcopyrite and the Calcite bed is strewn with Bornite crystals. The latter divide into two categories: sub-mm crystals of mainly iridescent peacock-blue and larger crystals, typically between 2 and 5 mm broad, of iridescent metallic golden-lime-green.

Product details

Species
Bornite, CalciteAbout Bornite →
SizeSmall Cabinet
Dimensions4.3 x 7.1 x 3.4 cm
Listed on10/24/2024
Locality
Kazakhstan, Karaganda Region, Dzhezkazgan mining districtRegional guide →
SKUCC19538

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.