Mamba Exploration (ASX:M24) has reported on initial shallow aircore drilling completed over the eastern gravity anomaly at the Hyden REE project in the wheatbelt of Western Australia.

The company said it has intersected significant widths and grades of clay hosted TREO mineralisation extending 2km north-south and 1km east-west including 32m @ 1,480ppm TREO from 16m including 12m @ 1,899ppm.

It also said of the 58 holes completed, 45 intersected (+500ppm TREO) mineralisation, with 26 holes ending in mineralisation.

Mamba Exploration said while the geochemical evaluation continues, metallurgical leaching test work has also commenced on a number of the zones of mineralisation from both the clay target zone and also the eastern gravity target area.