Westgold Resources Ltd (ASX:WGX) says the mineral resource estimate (MRE) of its Starlight underground mine in Western Australia has grown 91% since June, with the new estimate coming in at 12.9 million tonnes (Mt) at 2.7 grams per tonne (g/t) of gold for 1.13 million ounces (Moz). The overall MRE numbers describe a mine with two main components: an underground mineral resource of 8.7Mt at 3.0g/t for 840koz, and a newly estimated Open Pit Mineral Resource of 4.2Mt at 2.2g/t au for 290koz. The underground mine registered a 43% increase in resource since June 2024, following a 41% increase in th…