If you have not previously seen the Aventurine site, you have a treat awaiting you. If you need to estimate the cost of a mining activity, you have to get Sherpa software. Here is how Scott Stebbins describes his products:

Aventurine Engineering, Inc., designs and produces software used by cost estimators in the minerals industry, including computer programs to estimate the costs associated with underground, surface, and placer mines and has recently released a program specifically for estimating the costs of reclaiming mine sites.

Ultimately, Aventurine plans to offer a complete suite of software packages designed to estimate the costs, identify the risks, and quantify the economic potentials of a variety of accepted mining, mineral processing, and reclamation procedures. In addition to software products, Aventurine offers consulting services in the areas of mine cost analysis and mineral property evaluation.

Some detail about their codes:

Apex produces a complete cash flow schedule for your project and then computes the projected net present value, pay-back period, and internal rate of return on either a before- or after-tax basis.

Placer Mines uses production and deposit data supplied by the user to calculate a series of engineering parameters, which are in turn used by the program to estimate equipment, labor, and supply costs.

Reclamation Bonds uses project and site parameters supplied by the user to estimate the equipment, labor, supply, and administrative costs associated with mine site reclamation.

Surface Mines helps you estimate the costs of open-pit mining. Sherpa combines engineering-based estimating procedures with cost data from CostMine's (a division of InfoMine) Mining Cost Service to determine the pertinent capital and operating costs associated with surface development and mining.

Underground Mine is an engineering-based, menu-driven program that uses production and deposit data supplied by the user to calculate over 800 engineering parameters, which are in turn used by the program to estimate equipment, labor, and supply costs.