It reported up to 100% silicon dioxide at Gibraltar and 99.9% at Wonah from rock-chip sampling.
MGX operates three silicon projects in the province: Koot, Wonah and Gibraltar.
The energy metals group is investigating the potential to source high-grade silica as a feedstock for industrial silicon metal and solar silicon metal applications.
Silicon has a variety of uses. As well as in glass manufacture, it is also used to make pottery. It is also used in computers.
MGX completed two drill holes of an eight-hole drill program at the Gibraltar South Zone totaling around 2,100 feet.
The aim of the drill program is to test subsurface dimensions of high purity quartzite.
At Wonah, the main target includes the ridge where steeply dipping Ordovician age quartzite is exposed over a strike length of around 850 meters.
Gibraltar assays also included 99.9% and 98.5% silicon dioxide and Wonah assays showed 99.4% and 97.3% silicon dioxide.
As reported in October, a one-ton sample of quartzite from the Gibraltar site was shipped to an independent laboratory In Germany.
The sample went through various tests and the results indicate that it is of high initial purity, making the fraction chemically suitable as medium quality feedstock material to produce metallurgical-grade silicon.
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