Red Mountain Mining Returns Highest Antimony Grades to Date at Armidale Project

Red Mountain Mining (ASX: RMX) has returned the highest antimony grades to date from follow-up exploration at its Armidale project in the Southern New England Orogen of New South Wales.

The company carried out rock chip sampling as it took approximately 250 hand auger soil samples across the Oaky Creek South prospect, following strong antimony anomalies defined by initial sampling in June.

Red Mountain previously reported antimony in soil results of up to 333 parts per million and rock chip values of up to 28.3% antimony and 0.54g/t gold from the same area.

Major Antimony-Gold Potential

Best antimony grades of up to 39.3% (including 22.5% and 19.4%) came with gold grades of 0.16 grams per tonne, 1.09g/t and 0.52g/t in samples from the northern portion of the tenement.

Arsenic values were elevated in samples containing anomalous antimony and gold, which is typical of mineralised systems in the New England Orogen—a premier source of antimony, where it occurs in quartz veins, breccias, and stockworks often with associated gold-tungsten mineralisation.

The latest results confirm Oaky Creek’s potential to host a major orogenic antimony-gold camp, with mineralised samples now collected over a strike extent of 500 metres at Oaky Creek South and 700m at Oaky Creek North.

A 1.5 kilometre-long antimony soil anomaly at Oaky Creek North has indicated significant additional untested extensions.

Red Mountain expects results for the hand auger sampling program at Oaky Creek South before month end and these will guide plans for a similar program at Oaky Creek North to define prospective drill targets.

Soil and Rock-Chip Sampling

Red Mountain is planning soil and rock chip sampling at the Horsley Station and Horsley North gold targets within the Armidale project, where it recently secured land access.

The company is also working to gain access to ground truth stibnite and jarosite anomalies at Armidale in areas adjacent to known mineralisation or along the known Peel, Namoi, and Cobbadah faults.

The Armidale project, which lies approximately 85km west of Australia’s largest known antimony deposit at Hillgrove (owned by Larvotto Resources, ASX: LRV), extends for 85km along the western side of the Peel fault.

The Peel fault system contains over 400 known gold and base metal occurrences along a 400km strike extent that has been previously subject to less than 200 mostly-shallow drill holes focused on discrete prospects.