A memorandum of understanding was signed with China Southern Glass to form a strategic alliance over the Muchea silica sand project, 50km north of Perth.
The six-month MoU will consider marketing and sales, finance and the potential for a glass manufacturing facility in Western Australia.
Muchea has a resource of 208 million tonnes at 99.6% silica.
Earlier this week, the company increased the resource for its Arrowsmith North project, 270km north of Perth, by 398% to 771Mt at 98% silica.
The company is working on bankable feasibility studies and reserve estimates for both projects.
VRX shares jumped by 21% on Tuesday and were up 26% today to A14.5c. The stock opened the year at 13c but dropped to as low as 5.5c in May.