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Rose Rock

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Rose Rock

This article is about the rock crystals. For the skyscraper, see Rose Rock International Finance Center.

Rose rocks are aggregates of baryte (barium sulfate) crystals and sand whose iron content gives them a reddish hue. The baryte crystals form a circular array of flat plates, giving the rock a shape similar to a rose blossom. Rose rocks appear either as a single rose-like bloom or as clusters of blooms, with most sizes ranging from pea sized to 4 inches (10 cm) in diameter. The rose rock was selected as the official rock of the US state of Oklahoma in 1968.[1]

Location

Rose rocks are found in Algeria, Canada (in Nunavut), Jordan (in Wadi Rum), Morocco and the US (in and near central Oklahoma, the Wichita, the Ouachita Mountains and the Noble, Oklahoma area of Cleveland County, Oklahoma).[1]/

Formation in Oklahoma

Oklahoma rose stone was formed during the Permian Period, 250 million years ago, when western and central Oklahoma was covered by a shallow sea. As the sea retreated, barite precipitated out of the water and crystallized around grains of quartz sand. This left behind large formation of reddish sandstone, locally called Garber Sandstone, containing deposits of rose rock.[1]

Size

The average size of rose rocks are anywhere from 0.5 inches (1.3 cm) to 4 inches (10 cm) in diameter. The largest recorded by the Oklahoma Geological Survey was 17 inches (43 cm) across and 10 inches (25 cm) high, weighing 125 pounds (57 kg). Clusters of rose rocks up to 39 inches (99 cm) tall and weighing more than 1,000 pounds (454 kg) have been found.[2]

See also

References

External links

  • Noble, Oklahoma
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