The process of breaking up a mineral, compound or other matter or entity, into smaller or smallest units
The process of breaking up a mineral, compound or other matter or entity, into smaller or smallest units
A completed setup including a drill, drill string, mount, power, required accessories and housing
The location and distance of a series of holes drilled for mineral exploration and testing
A gear powered drilling hand tool
An access passage through rock, used for transportation and usually following a length or zone of mineralization
An underground opening at the bottom of a stope where broken ore is collected
To recover heavy minerals from depth, with a device that employs a vacuum to first collect material and a further device or series of devices, to classify and concentrate minerals of greatest density
The flow of water as influenced by gravity
A mineral concentration device that uses a catching net, or bucket tied to a long rope, to collect heavy minerals in moving current. Used for recovering placer minerals in creeks and rivers and usually for testing purposes
An intrusion of magmatic rock forming between fractures of earlier rock