Dugway geode bookend

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These dugway geodes come from Juab County, Utah. 6-8 million years ago volcanic activity deposited the extrusive rock Rhyolite. Trapped gasses formed cavities within the rock. Over millions of years, silica-rich fluids seeped into the cavities and formed these drusy and crystalline lined geodes.

8.5″ wide x 4″ tall x 2″ deep

Origin: Utah

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