The mineral calcium fluoride, commonly called "fluorite", is designated the official State mineral of the State of Illinois.
5 ILCS 460/25
State mineral
Known as the State Designations Act
The act spans §§ 5-460-1 to 5-460-95 (40 sections).
P.A. 90-655, eff. 7-30-98.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.