Veszelyite/Yunnan Province, China

Veszelyite forms in the oxidized zones of copper and zinc deposits, often in association with other phosphate and arsenate minerals.  It is found in areas where copper and zinc minerals have undergone alteration, and it typically forms in secondary mineralization zones. Veszelyite is most commonly found in vivid blue. The specific hue depends on the relative amounts of copper and zinc in the mineral. Veszelyite typically forms in prismatic or tabular crystals.  The crystals can be elongated and sometimes appear in aggregated forms.  These crystals are usually small but can form in clusters or as single, well-formed crystals. Veszelyite is highly valued by mineral collectors due to its vibrant blue or greenish-blue color and its relative rarity.