Arizona's state gemstone is Turquoise.
The Freshwater Pearl is the official state gemstone of Kentucky.
I dont think theres an official gemstone for the US but there is a Official gemstone for each state.
torquoise
Arizona's state mineral is copper. This is why Arizona's nickname is the copper state. Their state gemstone is turquoise. They don't have a state rock or stone.
The official state gemstone of Alabama is the Star Blue Quartz, adopted in 1990.
The state gemstone of Pennsylvania is the red variety of the mineral corundum, known as ruby. It was designated as the state gemstone in 1993 to recognize the significant deposits of this gemstone found in the state.
There is no official gemstone for Virginia.
It has no official state rock, stone or gemstone.
The Garnet is the official state gemstone.
It has no official state rock, stone, mineral or gemstone.
Rhode Island does not have an Official State Gemstone.