A large shear zone or structural fault
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Tag: <span>B</span>
A short raise or opening driven above a drift for the purpose of drawing ore from a stope, or to permit access
Narrow high walled canyon or gorge
A bluish-grey monoclinic metal mineral, Pb5Sb4S11
A descriptive term for minerals having the form of a cluster of grapes
Non-gem grade diamonds used for industrial purposes for their hardness, usually for cutting or as an abrasive
A soft, white mineral. Symbol, B
The use of sensory equipment to measure characteristics of the surrounding orebody of the borehole
A hole drilled and cored for the purpose of facilitating further exploring the underlying orebody
A small compass with sights and reflector