132

Chalcopyrite

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17g 19h 56m 1s
13/11/2026 16:11:00
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€ 50,00 / 100,00
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Description

Chalcopyrite

Cm 5X4X5
CuFeS2 — tetragonal system
More information
Found worldwide, with
notable specimens from Peru, the United States, and Italy (Elba), this
is the world’s principal ore of copper . It forms in hydrothermal veins,
magmatic deposits, and sedimentary environments across highly
variable geological ages. Hardness 3.5–4 Mohs, density 4.1–4.3 g/cm³,
golden metallic luster often with iridescent tarnish (“peacock ore”).
A fundamental industrial ore for copper extraction; valued by collectors
for its surface iridescence; occasionally used in decorative objects.
Time auction 1251

Historia Naturalis

mon 26 October - fri 13 November 2026
The description sheets do not always indicate the state of conservation of the goods, we invite you to always request the condition report before making your offers
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