Mystery Hill Project Overview
Key Commodity: Gold
The Mystery Hill project embrace an area of approximately 50 square kilometres, located about 170 kilometres west of the north-eastern Queensland coastal city of Cairns. A railway line is located 15 kilometres to the south of the main target area.
The deposit types in the Mystery Hill project area are essentially the same as those at Crystal Haven – a combination of breccias, veins of various orientations, acid dykes, widespread alteration, and geophysical indications of the possible presence of intrusives at depth. There are abundant old workings, both alluvial and hard rock, and the project has large 6 by 4 km co-incident gold and bismuth soil anomaly. Rock chip sampling in the district has returned values up to 14g/t Au and 154g/t Ag. A rock chip sample of a pegmatite returned 3.55% Li2O. The evaluation has identified four localities of interest that are similar to the Crystal Haven complexes and require more detailed exploration: Mystery Hill, Mountain Maid, Nicks Breccia, and Roadside Breccia. Mystery Hill is regarded as the area of greatest interest.
CMA geologists have accessed and reviewed a range of reports by earlier investigators, modelled the data available from public and private resources, and completed some mapping and portable X-Ray Fluorescence geochemical sampling. Geophysical images have outlined features similar to those at Crystal Haven, in particular a controlling 060° structure to the south of Mountain Maid. Nicks Breccia is situated along the same structure further to the east.