Table describing mining reserves

 

Mineral Resource:

is a deposit or concentration of natural, solid, inorganic or fossilized organic substance in such quantity and at such a grade or quality that extraction of the mineral at a profit is currently or potentially possible

Mineral Reserve:

is that part of a mineral resource which can be mined legally and at a profit under economic conditions that are specified and are generally accepted as reasonable. Economic viability must be demonstrated by at least a preliminary feasibility study based on Indicated and Measured Resources.

So this brings us to the second table which describes the mineral reserve categories;

Reserve Description Table

(from Canadian Institute of Mining and Metallurgy)

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