Uh Kensington Mine
The Kensington vein system contains reserves of 11.5 million tons of ore with 0.143 ounce of gold per ton (Bundtzen and others, 1991). The Kensington project, as defined by Coeur, contains over 1.96 million ounces of gold in the proven and probable categories. Mine life is expected to be 12 years, mining at a rate of 4,000 tons per day by long-hole open-stoping. Annual production is expected to be 259,000 ounces of gold.
.143 grams & .143 ounces big difference.
31.1 grams too the ounce of gold.
So .143 ounce of gold is 4.05 grams