No Comments

Drilling pattern

The location and distance of a series of holes drilled for mineral exploration and testing

No Comments

Drift

An access passage through rock, used for transportation and usually following a length or zone of mineralization

No Comments

Drawpoint

An underground opening at the bottom of a stope where broken ore is collected

No Comments

Dredge

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

No Comments

Dragline

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

No Comments

Dyke

An intrusion of magmatic rock forming between fractures of earlier rock

No Comments

Ductile

A term used to describe minerals capable of bending and reshaping without breaking