Drilling a mineral resource to calculate its location, grade and extent
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Tag: <span>D</span>
The initial evidence of a particular deposit
Drilling a to follow a series of premeditated targets
Basic magnetically charged compass
The angle at which a structure is inclined from the horizon at 90 degrees
A type of igneous intrusive rocks containing plagioclase, hornblende, biotite or pyroxene minerals
The downward current of air or other gas in a mine shaft, tunnel, passage or large cavity
A green trigonal mineral, CuSiO2(OH)2
Precious metals such as gold and silver, cast in bars for transportation, storage
A monoclinic pyroxene mineral, CaMgSi2O6