Precious metal poured into bars, and assigned value based on weight, then stamped
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Category: <span>B</span>
A representative geological sample of a large mass of mineral, 50kg to thousand tonnes, used to establish an average economic grade
Large-scale mechanized mining
Tractor with front mounted, curved steel shovel held by pivoted arms used to move material
A large stable and purpose built wall to protect against fire, water, explosion etc.
A machine used to move ore along a motorized conveyor with a series of hinged buckets
A triclinic plagioclase mineral, (Ca,Na)[Al,Si)AlSi2O8]
Minerals recovered in addition those targeted
A flammable hydrocarbon gas used as fuel, C4H10
A geologically significant intrusive igneous body in Transvaal, South Africa