Global Geoscience Limited announced that interim results from ongoing metallurgical test work at the Rhyolite Ridge Lithium-Boron Project in Nevada continue to demonstrate the potential for simple, low-cost processing to produce lithium carbonate and boric acid. The metallurgical program is aimed at evaluating a simple process route involving crushing, screening and flotation followed by dilute acid leaching to liberate lithium and boron. The relatively simple process route, using established technologies, is expected to compare favourably to other sources of lithium including brine and spodumene deposits. Key steps in the metallurgical program are to establish parameters for: Crushing, screening and attrition to separate clay and reduce acid consuming carbonate minerals from Li-B rich searlesite mineralisation; Flotation to further reduce carbonate minerals and produce a Li-B rich searlesite concentrate; and Acid leaching of the Li-B searlesite concentrate to determine Li/B recoveries and acid consumption. The results being reported on January 23, 2017, relate to step 1 and show that the Li-B rich mineralisation is mainly composed of relatively coarse material (78% greater than 212 microns) and that the coarse material comprises 40%-44% searlesite. The results confirm the coarse nature and low clay content of the searlesite mineralisation and indicate that the mineralisation is likely to be amenable to further concentration and acid leaching with modest acid consumption levels. Metallurgical testwork is being undertaken by Hazen Research in Colorado, USA and SGS Minerals in Ontario, Canada. The initial results are from a sample of Li-B mineralisation collected from outcrop along the western margin of South Basin and within the Mineral Resource. The same testwork is currently being undertaken on drill core samples and results will be released as they become available. The entire sample was crushed to 100% passing (P100) 25mm (2500 microns). A 5kg subsample was stage crushed to minus 1.7mm then dry screened at 850, 425, 212, 150, and 75 microns (µm). Subsamples were collected from the +850, +212 and -75 micron fractions for mineralogical determination by XRD analysis.