Volborthite specimens for sale

13 for sale · $200–$4,750 USD

50 in the gallery

Volborthite is a copper-oxide hydroxide mineral with the formula Cu3(V2O7)(OH)2·2H2O. It commonly forms monoclinic to orthorhombic crystals, often presenting a vitreous to resinous lustre and a rich green colour that ranges from deep emerald to olive. Crystals can be prismatic or elongated, occasionally revealing tabular faces, and are typically associated with secondary mineral assemblages in oxidized copper-bearing environments.

Formula
Cu3(V2O7)(OH)2 · 2H2O

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Where Volborthite is found

Top localities

  1. Milpillas Mine26 specimens
  2. North Star mine1 specimen
  3. La Facciata quarry, Carrara1 specimen

About Volborthite

Notable localities for volborthite include mines and oxidized zones in parts of Mexico, the United States, Bolivia, Chile, and Italy, where well-formed specimens have attracted mineral collectors for decades. In many deposits, volborthite occurs alongside minerals such as crandallite, diaboleite, and other copper minerals, creating attractive parageneses that enhance display value. The mineral’s relative rarity and its striking green coloration contribute to its appeal, making well-prepared, undamaged specimens desirable for collections.

Collectors value volborthite for its combination of vivid colour, modest crystal size, and the clarity of its crystal faces. Specimens that display clean, well-formed crystals set against contrasting matrix are particularly sought after, and classic localities continue to be a key draw for mineral enthusiasts building diverse suites of copper-oxide minerals.