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RM2181   Baryte "rose"

Lake Thunderbird area, Norman, Cleveland Co., Oklahoma, United States of America

Excellent, sculptural, two-sided baryte "rose" from Oklahoma. Oxidized sand grains are included in the baryte crystal structure with colorful effect. Essentially a floater. The hole adds much aesthetics. Baryte was precipitated in interconnected voids in the rock, probably from barium-rich marine waters that covered the Permian Garber Sandstone during or shortly after its deposition about 250 million years ago. The rose-like concretions incorporated the iron-stained quartz sand grains and thus acquired the red color of the host Garber Sandstone (online). These are the official Oklahoma State Rock.
Very interesting article in Mineralogical Record July-August 2008.

Size: 6.2 x 4.6 x 4.2 cm.

Col. Arguijo (Barcelona).
Classic locality