Iowa State Rock – The Geode
Rock lovers will love this simple page. It has great information on the state rock. So, check it out!
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Serpentine – State Rock
Serpentine rock is apple-green to black and is often mottled with light and dark colored areas. It’s found in central and northern California in the Coast Ranges, Klamath Mountains and Sierra Nevada foothills, and it is the official state rock of California
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