Agate is designated as the official state mineral.
Tenn. Code Ann. § 4-1-330
State mineral
Acts 2009, ch. 30, § 1.
Current official text: Tennessee Code (LexisNexis). Digitized from the UniCourt Code Improvement Commission public-domain capture. Reproduced from public-domain Tennessee statutes; confirm against the official source for the current text. Not legal advice.