Kingsgateite
Kingsgateite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula ZrMo⁶⁺₂O₇(OH)₂·2H₂O.
It crystallizes in the tetragonal crystal system (space group I4_1cd).
Key properties: specific gravity 3.74; White streak; Vitreous luster.
IMA symbol Kgg, IMA status: approved, named in 2019.
Part of a suite of secondary bismuth, molybdate, tungstate, phosphate, and arsenate minerals from the weathering of native bismuth-bismuthinite-molybdenite-bearing quartz pipes contained in coarse, hornblende-biotite granite.
It is found associated with Molybdenite, gelosaite, mambertiite, quartz, muscovite. Distribution From the Old 25 Pipe, Kingsgate, Gough Co., New South Wales, Australia.
The name is derived from the locality where the studied material was collected.