Description

rubber rings

On this well prepared specimen

Age Range: 8+

Travel through time

Ages: 11-Adult

Dugway Geode Half Biology rubber ringsThese geodes were found in Utah and halved to reveal the crystalline structure within. Approximately 6 to 8 million years ago (Miocene epoch), volcanic activity occurred in western Utah and deposited an extrusive igneous rock called rhyolite. Trapped gasses formed cavities within the rhyolite, and millions of years of ground water circulation allowed minerals to precipitate into the cavities. The result is geodes with spherical shapes and crystal

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Dugway Geode Half Biology rubber rings

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