Talc is used in making talcum powder. Rocky Nicknames New Hampshire is nicknamed the Granite State , Pennsylvania the Keystone State , Arkansas the Diamond State , Nevada the Silver State , and Idaho the Gem of the Mountains . It's easy to guess which states adopted the Louisiana agate, Oregon sunstone, and Oregon thunderegg. You don't have to go to the moon to find Florida's state gem, moonstone. Several states and one province have adopted fossils as state gems, stones, or rocks.
Petrified wood represents Mississippi, Texas, Washington, and Alberta.
Coal is Utah's state rock. However, New Jersey, Maryland, Virginia, and North Dakota have official fossils. .