The latest research shows that, in one of the boreholes, at the depth of 179 meters, a layer of 84 meters has been found, with the copper content of 10.75% and gold at 10.86 grams per ton. In another borehole, a deposit of the incredible 15.85% of cooper and as much as 16.77 grams of gold per ton has been found in a 46 m layer.
For comparison, ore with no more than 0.4% of copper is currently being exploited in the mines belonging to MSC Bor. Sites containing 1% of copper, if accompanied by adequate amounts of ore, are considered profitable. The best indication on how rich the site is is the fact that in the past 110 years of mining at Bor, five million tons of copper and nearly 160 tons of gold have been extracted.
The starting resources of 1.7 million tons of copper and 98 tons of gold have been determined at the Cukaru Peki site. At the depth of 558 to 559 meters, a resources of the incredible 25.7% of copper and 50.3 grams of gold per ton has been discovered, which makes it the richest borehole on the planet so far.
https://miningsee.eu/serbia-canadian-...on-around-bor/