MCL - Section 2.16
Act 89 of 1965
2.16 State stone.
Sec. 1.
The Petoskey stone is hereby adopted as the official stone of the state of Michigan.
History: 1965, Act 89, Eff. Mar. 31, 1966
Sec. 1.
History: 1965, Act 89, Eff. Mar. 31, 1966