Mine call factor (MCF) The ratio of the grade of material recovered at the mill (plus residue) to the grade of ore calculated by sampling in stopes.
What is ore loss?
Ore loss occurs when material containing grade (ore) is incorrectly sent to a waste dump. When a cost is given for Ore Loss, it is the sale value of the metal (gold, copper) recovered from this ore (i.e. ore tonnes x grade x recovery rate x metal price).
How long does it take to mine 1 Bitcoin?
There is currently no way to mine just one bitcoin. Instead, crypto miners will mine one block, with the reward currently being set at 6.25 BTC per block. Each block takes 10 minutes to mine.
Is it my or mine?
As you rightly note, my is a possessive adjective and mine is a possessive pronoun. So, this means you use my where you already have a noun (such as question) and want to indicate ownership. Like with all pronouns, you use mine in place of another noun when it’s understood what’s being discussed.
What is mine dilution?
Dilution is the waste material not separated from the ore in the stages of mining, and is sent to the processing plant. It is defined at the ratio of tonnage waste mined and sent for processing over the combined ore and waste tonnage milled.
How do you reduce ore dilution?
Drill production holes parallel to the key stope walls versus stab-holes – provided the holes are accurately placed. This can be an interesting situation as stab-holes can actually result in lower dilution as they may be less affected by drilling in-accuracies combined with good blast control.
How can I mine 1 Bitcoin a day?
There is currently no way to mine just one bitcoin. Instead, crypto miners will mine one block, with the reward currently being set at 6.25 BTC per block.
Where is mine used?
When we use mine in a sentence?
: that which belongs to me That book is mine. Those books are mine. 3 : a rich source of supply She was a mine of information.
How is the mine call factor ( MCF ) calculated?
D. Mine Call Factor The Mine Call Factor (MCF) is generally expressed as the “gold called for” versus the “gold accounted for”. However, this is expressed in different ways by different mines. In many cases, the ratio calculated is between the average grade in grams of gold per tonne of ore estimated versus grams per tonne of ore milled.
What is the call factor of a gold mine?
The Mine Call Factor Isobel Clark A. Introduction. In South African gold mines, the major measure of the efficiency of the production process is the “Mine Call Factor” (MCF).
What is the mine call factor at Iduapriem?
The mine call factor (MCF) at AngloGold Ashanti Iduapriem Mine from 2006 to 2012 was averaged 100% (AngloGold Ashanti, 2013). The difference of “gold called for” and “gold produced” is 5 890 ounces at an average price of 1 098.38 US$/Oz over this period. The loss in monetary values is equivalent to US$ 6 469 432.
What is the mine call factor for AngloGold Ashanti?
The concept is well known in underground mining scenarios and therefore this article highlights some MCF issues from a surface mine perspective using AngloGold Ashanti Iduapriem mine as a case study. The mine call factor (MCF) at AngloGold Ashanti Iduapriem Mine from 2006 to 2012 averaged 100% [1].
