Mineral Reserve

Criteria de Area: Before the area can be decided on the erratic laws are determined and corrected, indicating the method that is being used, preferring the statistic methods and those of extrapolation. 

Dilution: In veins that are of 0.5 meters or less in potency, in each sample the laws are diluted to the least width of conventional mining of 0.80 meters except in cases that indicate and show the contrary. For bigger veins of 0.50 meters, each sample of potency is diluted by adding 0.3 meters of width of dilution, except in cases that indicate and show the contrary. Dilution varies according to the nature of the boxes and the exploration system.

Correction: If appreciable discrepancies exist between the reserve laws and plant laws, corrections will be made of the reserve laws with the factor that determines such competition.

When data of treatment of the mineral plant do not exist and only results of metallurgic experimental tests are obtained, corrections of the laws of reserve are carried out for all the minerals, except in cases that prove the contrary.

Dimension of the Blocks: With the selected lots dimensioning of the blocks is done, keep in mind the first place the space of the geometric configuration and geological criteria, considering the continuity of the mineralization the limits of the area of the concessions must also be kept into account.

Mineral Inventory: The inventory of the minerals is the discriminate combination of blocks of economic minerals, marginal and sub-marginal. The categories of tested, probable, prospective, and potential are considered.