The fresh water pearl.
The Freshwater Pearl is the official state gemstone of Kentucky.
The official gemstone of Kentucky is the fresh water pearl.
State Mineral: Coal State Rock: Agate State Gemstone: Freshwater Pearl
The official Kentucky gemstone is the fresh water pearl which is white. The official mineral is coal which is black and the official state rock is the Kentucky Agate which can can include a variety of shades, hues and colors ranging from white on through the spectrum.
Arizona's state gemstone is Turquoise.
Turquoise is the official state gemstone of Arizona.
Alaska's state gemstone is Jade.
The state gemstone is the garnet.I don't believe it has one.
The Oregon state gemstone is sunstone.
I dont think theres an official gemstone for the US but there is a Official gemstone for each state.
Flint. The state legislature adopted flint as the state gemstone in 1965 because the gem is plentiful in the state.
Agatized Coral and the State Gemstone is the Moonstone.