Idaho is called the Gem State.
Massachusetts has no state gem.
The state gem of Colorado is the Aquamarine
No US state has the ruby as their official state gem.
California's state gem is benetoite.
It has no official state gem.
Colorado's state gem is the aquamarine.
Oklahoma does not have an Official State Gem.
Florida's State gem is the moonstone
the state gem is the freshwater pearl.
Idaho's state gem is the star garnet.
Idaho is known as the "Gem State"