Wildcatite
Wildcatite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula CaFe³⁺Te⁶⁺O₅(OH).
It crystallizes in the hexagonal crystal system (space group P-31m).
Key properties: Mohs hardness 3; specific gravity 4.557; Dull orange to white streak; Vitreous to earthy luster.
IMA symbol Wct, IMA status: approved, named in 2020.
From the oxidation of primary Te phases. Occurs on late fractures, as vug fillings and filling open-space in breccia matrix.
It is found associated with Gold, calcite, aragonite, native tellurium, manganese oxides, iron oxides, clinobisvanite, beyerite, coronadite, paratellurite, tellurite, andymcdonaldite.
The name is taken from the type locality, the Wildcat prospect, named for the area it lies within, Wildcat Hill.