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Florida State Gem

Moonstones (feldspar); photo by Bob Fosbury on Flickr (noncommercial use permitted with attribution / share alike),

Official State Gem of Florida

The moonstone was designated the official state gem of Florida in 1970 to memorialize American astronauts landing on the moon in 1969 (all astronaut-controlled spaceflights had been launched from the Kennedy Space Center in Florida). . All State Gems & Gemstones

Moonstone is a form of the mineral feldspar and is not found naturally in Florida. According to Gemological Institute of America, "A ghostly sheen moves under the surface of this feldspar, like moonlight glowing in water."