US$ 135.00
3-8 players | 30 min | Ages 12+
Commitment to Sustainability:
hands-on art projects
On this well prepared specimen
Dugway Geode Half Biology 3-8 players | 30 minThese 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
US$ 135.00
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