GEOVIA has released the latest version of the GEMS geology and mine planning software application. GEMS 6.5 provides many exciting new features designed to save time and increase productivity. New tools enable much easier drillhole design, and then allow users to rapidly produce and evaluate solids from the drillhole information in ways that were not previously possible, freeing more time for evaluation and analysis. The new Dynamic Shells module allows geologists to quickly and easily model geologic data for visualisation of grade data.Fully integrated with GEMS, this tool is designed to save time when initially evaluating deposits and can assist in generating surfaces and solids in moments as opposed to hours. Although this method does not replace traditional solids and block modelling, it is a technique that can provide mining operations with a faster and more flexible analysis capability for an ore deposit. GEMS 6.5 benefits include a new drillhole design tool assists with designing and storing new drillholes for exploration or resource extension projects, allowing geologists to create and edit new planned drillholes graphically; the solids validation and error correction has undergone a dramatic change, and new solids repair functionality reduces solids validation time “from days to minutes”; and the solids autocorrect feature locates and fills invalid triangles, and removes and fills the resultant hole(s) with the ability to expand the selection to neighbouring triangles in order to fix more complex error groups.In addition, TIN conditioning, triangle thinning, selection and manual repair functions are also collated into the new tool for ease of use. The New Dynamic Shells module interactively creates grade shells from drillholes and sample information. Geologists can select data points directly from GEMS and immediately create implicitly modelled isosurfaces, and analyse several different models simultaneously based on different interpolation parameters.