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White Cliff Minerals drills out more cobalt, nickel and copper at Coglia Well

Notably, highly anomalous copper assays are suggestive of sulphide mineralisation.

Cross section showing cobalt mineralisation and interpreted geology
Future drilling will use a larger rig in order to drill deeper

White Cliff Minerals Ltd (ASX:WCN) has received its final batch of assays from drilling at its 100%-owned Coglia Well cobalt-nickel project near Laverton in Western Australia.

Significantly, drilling intersected substantial cobalt-nickel mineralisation in several consecutive holes extending across a width of 850 metres.

Highlights included 4 metres at 0.11% cobalt and 3.20% nickel from 43 metres and 2 metres at 0.38% cobalt and 1.05% nickel from 65 metres.

READ: White Cliff Minerals reveals more cobalt and nickel from drilling at Coglia Well

As with earlier assays, several holes ended in cobalt-nickel mineralisation meaning further drilling will be required to test the true potential of mineralisation.

Drilling also intersected significant copper mineralisation including; 23 metres at 1,024ppm copper.

These grades are highly anomalous and may be associated with a sulphide source.

Follow-up drilling being planned

White Cliff’s managing director Todd Hibberd said: “The final batch of assay results from the Coglia cobalt project has identified more cobalt and nickel mineralisation at significant grades including 3 metres at 3.85% nickel 0.12% cobalt and 346ppm copper.

“The identification of highly anomalous copper grades (23 metres at 1,024ppm copper) and nearby nickel grades up to 4.23% nickel is suggestive of a nearby sulphide source for the mineralisation.

“The copper anomalism appears to increase towards the contact between the ultramafic unit and the underlying felsic volcanic rock, the classical position for nickel-copper sulphide mineralisation.

“The company is currently planning follow up drilling.”

Larger drill rig required

The aircore drilling equipment was unable to penetrate the silica layer and did not penetrate to the deeper parts of the mineralised zone that occurs from 75-100 metres deep.

Due to hard ground conditions, further drilling programs will be conducted with a larger drill rig.

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