US lawMontanaStatutesTitle 1Chapter 1Part 51-1-505Mont. Code Ann. § 1-1-5051-1-505 State gem stonesYear: 2026Length: 18 wordsOfficial source 1-1-505 . State gem stones. The sapphire and the Montana agate are the official Montana state gem stones.PreviousMont. Code Ann. § 1-1-504NextMont. Code Ann. § 1-1-506