Cuprite

Cuprite specimens for sale

216 for sale · $85–$22,000 USD

672 in the gallery

Cuprite is a copper oxide mineral that forms as red to brown-red crystals and masses with a distinctive metallic to resinous lustre. It commonly occurs in oxidized zones of copper deposits, often as granular aggregates or well-formed crystals that exhibit a glassy to adamantine sheen. The mineral’s characteristic color and reflective surfaces make it a striking collector piece, especially when small, well-terminated crystals display sharp edges.

Formula
Cu2O
Rarity
Common
Stability
Stable
Collector interest
Moderate Interest
Classification notes
Oxide mineral; copper(I) oxide (Cu2O); Strunz 04.AA

Key characteristics

Crystal system
isometric
Mohs hardness
3.5–4
Specific gravity
6–6.14
Luster
adamantine, submetallic, dull
Transparency
transparent, translucent, opaque
Color
red, brown, black, gray
Streak
red, brown
Cleavage
poor
Fracture
conchoidal, uneven
Crystal habit
cubic, octahedral, dodecahedral, acicular, fibrous, granular, massive
  • Gem mineral
  • Classic / historic

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Where Cuprite is found

Top localities

  1. Rubtsovsk Mine55 specimens
  2. Mashamba West Mine44 specimens
  3. Milpillas Mine44 specimens
  4. Bisbee35 specimens
  5. Ray Mine29 specimens
  6. Mufulira Mine13 specimens
  7. Tsumeb13 specimens
  8. Red Dome Mine11 specimens
  9. Kolwezi8 specimens
  10. Onganja Mine7 specimens

About Cuprite

Notable specimens have come from historic copper-producing regions in the United States and Russia, among others, with localities in Namibia, the Democratic Republic of Congo, and the United Kingdom contributing notable pieces as well. Cuprite often forms in association with other copper oxides and sulfides, and can occur in veinlets and cavity fillings where oxidation has concentrated copper minerals. Its vivid red hue makes it a memorable contrast against darker gangue material, appealing to collectors seeking color-rich minerals for display.

Collectors value cuprite for its color, habit and the way crystals reflect light in hand-specimen and cabinet displays. While typically modest in size, high-quality cuprite crystals or aesthetically pleasing aggregates from classic localities remain sought-after for their visual impact and historical context within copper-oxide mineral assemblages.