Diatreme Resources Limited has unveiled new conceptual exploration targets within its Northern Silica Project in Far North Queensland that could significantly expand the company’s resource base. Utilizing high-resolution LiDAR terrain modelling and remote geomorphological interpretation, the company has identified two promising zones—Casuarina East and Casuarina West—located adjacent to the well-established Cape Flattery silica mining operations. The analysis indicates that these dune systems, which cover approximately 4.9 million m² and 3.0 million m² respectively, might hold between 115 million tonnes and 275 million tonnes of high-purity silica sand, with estimated grades ranging from 98.5% to 99.9% SiO₂. A dry bulk density of 1.65 tonnes per cubic meter was used in this conservative volumetric model, which is based solely on desktop analyses, without any physical drilling or sampling to date. The strategic positioning of these targets immediately next to an internationally recognised silica mining area provides Diatreme with a compelling growth opportunity. The potential extension of the resource base comes at a time when the company recently upgraded its Mineral Resource Estimate for the Si2 Deposit, bringing its global silica sand resource figure to an impressive 501.16 million tonnes across the Cape Flattery and Cape Bedford regions. Alongside these technical preliminaries, a recent site visit by Diatreme’s board and management reaffirmed the logistical benefits of a nearby marine loading facility at Cape Flattery Port, which currently has a nameplate capacity of 6 million tonnes per day and already exports around 3 million tonnes per annum. While the preliminary data suggests a significant resource expansion opportunity and reinforces the company's strategic development framework—especially with the growing demand for low-iron, high-purity silica in the solar photovoltaic industry—the company stresses that all interpretations are conceptual in nature. The exploration targets have been delineated under the JORC Code (2012) guidelines and are yet to be confirmed by field-based exploration, underscoring the inherent uncertainties and exploration risks at this early stage. From a bullish perspective, the news highlights the potential for Diatreme Resources Limited to expand its operations significantly by tapping into an adjacent, underexplored silica asset with promising tonnage and quality. The strong technical underpinnings, combined with recent resource upgrades and strategic port access, may signal a positive outlook for investors eyeing growth in the critical minerals sector. Conversely, bearish sentiment arises from the fact that these targets remain untested, with no ground verification to date and all estimates relying entirely on remote sensing data. This could mean that, should on-ground exploration and drilling not confirm the projected tonnages and grades, the anticipated resource expansion might fall short of market expectations.