These sand grains were carried west from the Appalachians by a Mississippi-scale river system and deposited at the continental edge, in present day Utah. Deposited on beaches by the waves, the sand grains were picked up by the wind and deposited in a gigantic dune field similar to Egypt's Great Sand Sea.
These specimens will fit into a 3.5 x 5.25" specimen tray. We include data with every specimen: collecting locality for mineral specimens and for rocks also the formation and age, if determined.
Select a specimen: When more than one specimen is shown, you can select a particular specimen by telling us what is in the photo with it - a black mechanical pencil, a silver and black pen, a silver and blue pen, or one of those plus some number of coins, or you can let us make the selection.
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