Dugway Geode Half - Utah (with stand) Mammoth / Mastodon a volcano located near what
$148.50
Description
a volcano located near what is now called McDermitt
inside an underground limestone mine sometime between 1770 and 1774
it is theorized the beast was only able to hold onto its prey with its short arms long enough to bite enough flesh for a meal
some 150 million years ago
Oregon in 1967 (just 3 years before our shop opened)
Dugway Geode Half - Utah (with stand) Mammoth / Mastodon a volcano located near whatWhen volcanic activity occurred in what is now western Utah some 8 million years ago, deposits of the igneous rock rhyolite formed. As the rock cooled, pockets of volcanic gases became trapped and formed cavities. The circulation of groundwater allowed silica and other minerals to precipitate into these cavities and form layers of agate and crystal quartz over the course of millions of years. Today the result is a beautiful and unique variety of
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