Utahite
An extremely rare copper-zinc tellurate described in 1997 from Utah's Centennial Eureka mine.
Intro adapted from Wikipedia (CC BY-SA).
Utahite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula MgCu²⁺₄Zn₂Te⁶⁺₃O₁₄(OH)₄·6H₂O.
It crystallizes in the triclinic crystal system.
Key properties: Mohs hardness 4–5; specific gravity 5.33; Pale blue streak; Vitreous to pearly luster.
IMA symbol Uta, IMA status: approved, named in 1995.
A very rare secondary mineral found on dump material from the oxidized zone of a Cu–Zn–Te-bearing hydrothermal ore deposit.
It is found associated with Cesbronite, quartz.
The name commemorates the state of Utah, USA, where the mineral was discovered.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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