Halogen element. A heavy, reddish-brown liquid, volatile at room temperature with a toxic vapour. Symbol, Br
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Category: <span>B</span>
Broken ore not yet brought to surface
Fine-grained rock matrix with suspended larger rock and fragments
A large shear zone or structural fault
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