Benitoite
California's state gem is benetoite.
The state gem for California is Benitoite.
Benitoite is the state gem of California due to its unique and striking blue color, as well as its rarity; it is found almost exclusively in San Benito County. Discovered in 1907, it was designated the state gem in 1985, symbolizing California's geological diversity. Its distinct characteristics, including its high birefringence and fluorescence under ultraviolet light, further contribute to its significance and appeal.
Idaho is called the Gem State.
The state gem of Colorado is the Aquamarine
Massachusetts has no state gem.
Idaho's official nickname is the "Gem State".
No US state has the ruby as their official state gem.
It has no official state gem.
Colorado's state gem is the aquamarine.
Oklahoma does not have an Official State Gem.
Washington, D.C. is not a state and therefore does not have a state gem.