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Rumble Resources announced on 28 October an optimised mineral resource estimate for its Western Queen gold and tungsten project in Western Australia. The revised gold resource is 3.92 million tonnes at 3.1 grams per tonne for 393,100 ounces, following tighter geological modelling intended to align the resource with selective underground mine design.
The previous June estimate was 5.13 million tonnes at 2.6 g/t for 433,600 ounces. The company reports a 19% increase in overall grade, but total tonnage and contained gold are lower. The change therefore represents a different constrained resource model rather than a discovery adding ounces to the deposit.
No additional drilling data was included in the revision. Lode wireframes used a 1.0 g/t cut-off to exclude lower-grade peripheral material, and model block dimensions were changed to better reflect the orientation of mineralisation. At Western Queen South, indicated resource grade increased 27% with a roughly 1% reduction in contained ounces.
Rumble intends the revised model to support stope design and the updated mining schedule in its scoping work. Higher modelled grade may influence an underground study, but it does not alone establish economic viability, ore reserves or an operating mine. Mining recovery, dilution, costs and other technical assumptions remain part of the development assessment.