MCL - Section 2.17
Act 56 of 1972
2.17 State gem.
Sec. 1.
Chlorastrolite, commonly known as greenstone, is adopted as the official gem of this state.
History: 1972, Act 56, Eff. Mar. 30, 1973
Sec. 1.
History: 1972, Act 56, Eff. Mar. 30, 1973