Also, a state's official state rock may be a mineral, just as one of the minerals in this list is actually a rock. And a state's official mineral may be confused with its official gemstone. Be sure to check those lists, too. I also have a big list of gemstone names and their corresponding mineral names.
Alabama: Hematite (source)
Alaska: Gold (source)
Arkansas: Quartz (source)
California: Gold (source)
Colorado: Rhodochrosite (source)
Connecticut: Almandine garnet (source)
Delaware: Sillimanite (source)
Georgia: Staurolite (source)
Illinois: Fluorite (source)
Kentucky: Coal (source)
Massachusetts: Babingtonite (source)
Missouri: Galena (source)
Nevada: Silver (implied) (source)
New Hampshire: Beryl (source)
Rhode Island: Bowenite (source)
South Dakota: Rose quartz (source)
Utah: Copper (source)
Vermont: Talc (source)
Wisconsin: Galena (source)
