barite rose - teaching set of barite roses from the Garber Sandstone near Noble, Oklahoma
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Barite roses crystallized in the Permian Garber Sandstone. They represent a lag deposit, an accumulation of erosional remnants in the soil, having weathered from the underlying rock. Their high density and lack of solubility has caused them to concentrate in the soil, though they did not form there.
The source of the barite is undetermined. Similar in shape to gypsum roses that form rapidly in seasonal salt lakes, these may have been forming in the Garber Sandstone continuously since the Permian in low concentrations and as the sandstone is weathered and eroded, the barite roses remained behind.
Teaching set of small to medium barite roses, with a density that is surprising to students.
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