utahite

Also known as IMA1995-039

Utahite is an extremely rare secondary copper zinc tellurate mineral found as a product of oxidation. Its chemical formula is Cu5Zn3(Te6+O4)4(OH)8·7H2O.

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Nickel-Strunz 9th edition (updated 2009): 7.DE.25
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 7.DE.25
IMA Mineral Symbol: Uta
chemical formula: Cu₅Zn₃(TeO₄)₄(OH)₈·7H₂O

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Utahite is an extremely rare secondary copper zinc tellurate mineral found as a product of oxidation. Its chemical formula is Cu5Zn3(Te6+O4)4(OH)8·7H2O.

It was first described in 1997 for an occurrence in the Centennial Eureka mine, one mile southeast of Eureka, Tintic District, Juab County, Utah, US (type locality). The discovery site was a mine dump of a hydrothermal ore deposit where it occurs with cesbronite and quartz. It has also been reported from the Empire Mine in the Tombstone District of Cochise County, Arizona.