Geotechnical - Investigation of the soil and bedrock on and below a site to determine their engineering properties and how they will interact with, on or in a proposed construction.

 

Grade - The relative quantity or the percentage of ore-mineral or metal content in an orebody.

 

Grade Control - The process of monitoring the estimation of grade in the mining operation by comparison of estimates based on exploration drilling, infill drilling, blast-hole sampling and mining / milling reconciliation exercises.

 

Gravity Separation - Separation of mineral particles, with the aid of water or air, according to the differences in their specific gravities.