ackley n Rock formation in which the metallic element molybdenum occurs.
1983 MARTIN 35 The [Rencontre east] mine's most active period were
the years just before World War II. Employees...lived for a time on the shores of
Rencontre Lake in a cabin called 'Ackley City' after a company director, John W.
Ackley... One permanent legacy of the mine remains: 'Ackley' has become the official
geological name of the granite in which the molybdenum occurs.