Rox Resources says assay results have confirmed its hopes of a significant nickel discovery at its Mt Fisher project south east of Wiluna.

The company said assay results from drilling generally confirmed higher grades and thicker intersections than those picked up by a portable XRF device, which it reported to the market on December 19.

Rox said its best intersection was 20 metres grading 1.1 per cent nickel including six metres at 1.4 per cent nickel and five metres at 1.5 per cent nickel.

The company said it encountered nickel in all five holes drilled at its Camelwood prospect covering a strike length of 300m and up to 200m vertical depth.

It also noted the system was open in all directions.

Managing director Ian Mulholland said the results confirmed a significant new nickel sulphide discovery at Fisher East, which he believed had the potential to be a very large system.

"We will be following up these results quickly with more drilling and EM surveys to identify new conductors on our tenements," he said.