The Mining Game

Each player starts with $20 million and acquires mining leases. With skillful exploration, deposits of metal are discovered. Players compete for the available contracts to mine and sell the metal they have discovered. Players encounter variable metal selling prices during the life of their mines. The player who manages his operation well and earns the most money is the winner.
(summary from back of box)

From the front of the 1973 edition box: Devised by Dr. T. Jenkins, Senior Metalurgist Engineer with Australia's largest Mining Company.
A combination of skill, luck and decision making is required to play the Mining Game, which, for the first time gives na insight into operations of the Mining Industry. Suitable for ages 12 years to adult.