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Evaporite sand crystal pseudomorphs in plan polarized light (left hand side) and under crossed nicols: A, B, nodularized botryoidal barite; C, D, nahcolite needles; E, F, searlesite (?) spherulite. Samples in Museum of Natural and Cultural History of the University of Oregon are (A-D) R34796 from By horizon of Wanta loam paleosol, and (E-F) R3800 from By horizon of Wanta silty clay loam paleosol.
