What 'Z' mineral found in Yilgarn Craton, Western Australia with an age of 4.404 billion years might be the oldest mineral on earth?
Chaotian (geology) capable mineral. These are zircon, the oldest mineral in the Jack Hills of Narryer Gneiss Terrane in Western Australia (Yilgarn craton) found and were dated 4,404 ± 8 million years ago According to first proposal, it precedes the Hadean eon and is the earliest eon in Earth's history as a planet. The end of the Chaotian was marked by the hypothetical collision of the proto-Earth and a planet-sized body named Theia, leading to the formation of the Moon. Alternatively it is defined as the first era of the Hadean eon, before the formation of the first crust on the Earth.
Yilgarn Craton fauna, as some of the soil is essentially fossilised. Much of the groundwater of the Yilgarn is hypersaline, with some being supersaturated in salt. This renders swathes of land barren, with significant salt lakes, and high saline water tables. The origin of this salt is thought to be from precipitation of sea salt carried over the Australian landmass for the past several dozen million years, and the high evaporation rate leaving the salt behind. The greenstone belts of the Yilgarn Craton include: The Yilgarn Craton is Australia's premier mineral province. It attracts more than half of Australia's minerals exploration expenditure,