In the United States, rose quartz (including the star variety) is found in the Black Hills of South Dakota, and is the official state mineral. Other important sources of the gemstone are India, Germany, Switzerland, Brazil and Madagascar (where mines also yield examples of star rose quartz).
The Oklahoma City metropolitan area, including Norman, is the most tornado-prone area in the world. The Storm Prediction Center (SPC), a branch of the National Oceanic and Atmospheric Administration (NOAA) is located at the NWC.SPC forecasts severe storm and tornado outbreaks nationwide.ith the completion of Interstate 35 in June 1959, Norman found its role as a bedroom community to Oklahoma City increasing rapidly; in 1960 Norman's population was 33,412 but by the end of the decade had grown to 52,117.
Location of Cleveland County within the state of Oklahoma. Cleveland County is a county equivalent area found in Oklahoma, USA. The county government of Cleveland is found in the county seat of Norman. With a total 1,445.44 sq. km of land and water area, Cleveland County, Oklahoma is the 1977th largest county equivalent area in the United States.