I-Minerals Achieves High Purity Quartz Results of up to 99.981% SiO2

I-Minerals Achieves High Purity Quartz Results of up to 99.981% SiO2, Wall Street Journal, July 10, 2014. I-Minerals Inc.’s quartz-potassium feldspar (“K-spar”) sand fraction has been sent to NC State’s Minerals Research Laboratory, where the quartz and K-spar in the sand fraction are separated using standard wet flotation and dry rare earth magnetic separation techniques.