The hourglass selenite crystal is hereby designated and adopted as the official crystal of the State of Oklahoma.
Okla. Stat. tit. 25, § 98.8
Official state crystal
Added by Laws 2005, c. 14, § 1, emerg. eff
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.