Porphyry Deposit
A deposit in which minerals of copper, molybdenum, gold, or less commonly tungsten and tin, are disseminated or occur in a stockwork of small veinlets within a large mass of hydrothermally altered igneous
Ore
The naturally occurring material from which a mineral or minerals of economic value can be extracted. Usually minerals, especially metals, are mined first in ore form, then refined later.
Source: US Geological Survey
Net Present Value (NPV)
NPV is the widely accepted tool for measuring the value of a mine project. It calculates the current value of the cash flows at the required rate of return of a project compared
Stope
A stope is a dugout tunnel or space that contains the ore that is being mined. Clear stopes are essential for a mining industry operation to run smoothly.
The stope provides direct access
Tailings
Tailings are a by-product of mining. After ore containing an economically-recoverable commodity is mined from the earth, that commodity is extracted in a processing plant or mill. After the commodity of value is