The chalcedony stone, known as blue agate, is hereby declared the state gem stone of Nebraska.
Neb. Rev. Stat. § 90-108
State gem; blue agate
Laws 1967, c. 608, § 1, p. 2057; R.R.S.1943, § 84-725.
Official source: Nebraska Legislature. Reproduced from public-domain Nebraska statutes; confirm against the official source for the current text. Not legal advice.